One hundred fifty three
153 is an odd number.
153 is a Harshad number, which means it is divisible by the sum of its digits (1 + 5 + 3 = 9, and 153 is divisible by 9).
In binary, 153 is represented as 10011001.
In hex, 153 is represented as 99.
153 is an Armstrong (or Narcissistic) number, which means it is the sum of its own digits each raised to the power of the number of digits.
Prime factorization of 153: 32 * 17.