129931052 has 24 divisors (see below), whose sum is σ = 230630400. Its totient is φ = 64043136.

The previous prime is 129931019. The next prime is 129931093. The reversal of 129931052 is 250139921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100949 + ... + 102227.

It is an arithmetic number, because the mean of its divisors is an integer number (9609600).

Almost surely, 2^129931052 is an apocalyptic number.

It is an amenable number.

129931052 is a deficient number, since it is larger than the sum of its proper divisors (100699348).

129931052 is a wasteful number, since it uses less digits than its factorization.

129931052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 129931052 is about 11398.7302801672. The cubic root of 129931052 is about 506.4901279769.

The spelling of 129931052 in words is "one hundred twenty-nine million, nine hundred thirty-one thousand, fifty-two".