129953504 has 12 divisors (see below), whose sum is σ = 255846024. Its totient is φ = 64976736.

The previous prime is 129953489. The next prime is 129953513. The reversal of 129953504 is 405359921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2030492 + ... + 2030555.

It is an arithmetic number, because the mean of its divisors is an integer number (21320502).

Almost surely, 2^129953504 is an apocalyptic number.

It is an amenable number.

129953504 is a deficient number, since it is larger than the sum of its proper divisors (125892520).

129953504 is an equidigital number, since it uses as much as digits as its factorization.

129953504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061057 (or 4061049 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 129953504 is about 11399.7150841589. The cubic root of 129953504 is about 506.5193000165.

The spelling of 129953504 in words is "one hundred twenty-nine million, nine hundred fifty-three thousand, five hundred four".