129900224 has 28 divisors (see below), whose sum is σ = 259104384. Its totient is φ = 64614144.

The previous prime is 129900209. The next prime is 129900257. The reversal of 129900224 is 422009921.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7457 + ... + 17759.

It is an arithmetic number, because the mean of its divisors is an integer number (9253728).

Almost surely, 2^129900224 is an apocalyptic number.

It is an amenable number.

129900224 is a deficient number, since it is larger than the sum of its proper divisors (129204160).

129900224 is a wasteful number, since it uses less digits than its factorization.

129900224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512 (or 10502 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 129900224 is about 11397.3779440712. The cubic root of 129900224 is about 506.4500674666.

The spelling of 129900224 in words is "one hundred twenty-nine million, nine hundred thousand, two hundred twenty-four".