interesting number (thing) by arcterex

There are many interesting numbers, according to the Penguin Book of Curious and Interesting Numbers (David Wells, 1986, 0-14-008029-5), the smallest interesting number is...

Drum roll please....

According to this text, it is interesting for the following reasons:

23 & 29 are the first pair of consecutive primes differing by 6.
23 is one of only two integers that needs 9 +ve cubes to represent it (the other is 239).
23 is the 4th prime the period of whose reciprocal is of maximum length.
23 is the smallest number of rigid rods of unit length needed to brace a square.
23 is the largest integer that is not the sum of distinct powers.
23! is 23 digits long in base 10.
If there are at least 23 people in a room the the probability that two or more people share the same birthday is >50%.

Note: I'm by no means a math person, so the above could be complete and utter bullshit :) It sounds good though...

The World's Dullest Person	Smallest number greater than 0	If cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl	666
2100010006	number 6	I made an old man cry	65537
Ally McBeal	Octane Number	23	The value of infinity
pneumatic tubes	Berry's Paradox	Contradiction	153
Numbers	happy number	anti-divisor	50%
If you're allowed one phone call at a police station why not one URL instead	How it would happen	Finite simple continued fraction	Unicode Middle Eastern Scripts