459

459 = 3³ x 17.

459 is the smallest number n such that if you subtract it from its reverse, you get a natural number with the same digits as n: 954 - 459 = 495.

459 is the smallest number such that the product of its digits is 10 times their sum: 4 x 5 x 9 = 180 = 10 (4 + 5 + 9).

459 is 1224 in base 7 and 323 in base 12.

Absolute zero on the Fahrenheit scale is about -459.67 degrees.

Source: Number Gossip