129575032 has 8 divisors (see below), whose sum is σ = 242953200. Its totient is φ = 64787512.

The previous prime is 129575029. The next prime is 129575051. The reversal of 129575032 is 230575921.

It is a tau number, because it is divible by the number of its divisors (8).

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, 8098432 + ... + 8098447.

It is an arithmetic number, because the mean of its divisors is an integer number (30369150).

Almost surely, 2^129575032 is an apocalyptic number.

It is an amenable number.

129575032 is a deficient number, since it is larger than the sum of its proper divisors (113378168).

129575032 is a wasteful number, since it uses less digits than its factorization.

129575032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16196885 (or 16196881 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 129575032 is about 11383.1029161648. The cubic root of 129575032 is about 506.0270989044.

The spelling of 129575032 in words is "one hundred twenty-nine million, five hundred seventy-five thousand, thirty-two".