129490664 has 16 divisors (see below), whose sum is σ = 242917920. Its totient is φ = 64712560.

The previous prime is 129490657. The next prime is 129490679. The reversal of 129490664 is 466094921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24149 + ... + 29019.

It is an arithmetic number, because the mean of its divisors is an integer number (15182370).

Almost surely, 2^129490664 is an apocalyptic number.

It is an amenable number.

129490664 is a deficient number, since it is larger than the sum of its proper divisors (113427256).

129490664 is a wasteful number, since it uses less digits than its factorization.

129490664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8200 (or 8196 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 129490664 is about 11379.3964690576. The cubic root of 129490664 is about 505.9172481025.

The spelling of 129490664 in words is "one hundred twenty-nine million, four hundred ninety thousand, six hundred sixty-four".