129632164 has 12 divisors (see below), whose sum is σ = 232987804. Its totient is φ = 63064224.

The previous prime is 129632161. The next prime is 129632171. The reversal of 129632164 is 461236921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99161764 + 30470400 = 9958^2 + 5520^2 .

It is not an unprimeable number, because it can be changed into a prime (129632161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437799 + ... + 438094.

Almost surely, 2^129632164 is an apocalyptic number.

It is an amenable number.

129632164 is a deficient number, since it is larger than the sum of its proper divisors (103355640).

129632164 is a wasteful number, since it uses less digits than its factorization.

129632164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875934 (or 875932 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 129632164 is about 11385.6121486726. The cubic root of 129632164 is about 506.1014601754.

The spelling of 129632164 in words is "one hundred twenty-nine million, six hundred thirty-two thousand, one hundred sixty-four".