129764133 has 32 divisors (see below), whose sum is σ = 197568000. Its totient is φ = 84138048.

The previous prime is 129764123. The next prime is 129764147. The reversal of 129764133 is 331467921.

129764133 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 641 + 3 + 3 = 666.

It is not a de Polignac number, because 129764133 - 2⁵ = 129764101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129764113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371643 + ... + 371991.

It is an arithmetic number, because the mean of its divisors is an integer number (6174000).

Almost surely, 2^129764133 is an apocalyptic number.

It is an amenable number.

129764133 is a deficient number, since it is larger than the sum of its proper divisors (67803867).

129764133 is a wasteful number, since it uses less digits than its factorization.

129764133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 692 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 129764133 is about 11391.4061028479. The cubic root of 129764133 is about 506.2731435236.

The spelling of 129764133 in words is "one hundred twenty-nine million, seven hundred sixty-four thousand, one hundred thirty-three".