129604772 has 24 divisors (see below), whose sum is σ = 253465632. Its totient is φ = 57473600.

The previous prime is 129604763. The next prime is 129604789. The reversal of 129604772 is 277406921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34118 + ... + 37725.

It is an arithmetic number, because the mean of its divisors is an integer number (10561068).

Almost surely, 2^129604772 is an apocalyptic number.

It is an amenable number.

129604772 is a deficient number, since it is larger than the sum of its proper divisors (123860860).

129604772 is a wasteful number, since it uses less digits than its factorization.

129604772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71899 (or 71897 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 129604772 is about 11384.4091634129. The cubic root of 129604772 is about 506.0658103096.

The spelling of 129604772 in words is "one hundred twenty-nine million, six hundred four thousand, seven hundred seventy-two".