129633252 has 48 divisors (see below), whose sum is σ = 347034240. Its totient is φ = 36893952.

The previous prime is 129633247. The next prime is 129633253. The reversal of 129633252 is 252336921.

It is not an unprimeable number, because it can be changed into a prime (129633253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19728 + ... + 25464.

It is an arithmetic number, because the mean of its divisors is an integer number (7229880).

Almost surely, 2^129633252 is an apocalyptic number.

129633252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129633252 is an abundant number, since it is smaller than the sum of its proper divisors (217400988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129633252 is a wasteful number, since it uses less digits than its factorization.

129633252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020 (or 6018 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 129633252 is about 11385.6599281728. The cubic root of 129633252 is about 506.1028760710.

The spelling of 129633252 in words is "one hundred twenty-nine million, six hundred thirty-three thousand, two hundred fifty-two".