129958864 has 40 divisors (see below), whose sum is σ = 288408128. Its totient is φ = 55572480.

The previous prime is 129958861. The next prime is 129958877. The reversal of 129958864 is 468859921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129958861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63619 + ... + 65629.

Almost surely, 2^129958864 is an apocalyptic number.

129958864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129958864 is an abundant number, since it is smaller than the sum of its proper divisors (158449264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129958864 is a wasteful number, since it uses less digits than its factorization.

129958864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603 (or 2597 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 52.

The square root of 129958864 is about 11399.9501753297. The cubic root of 129958864 is about 506.5262638050.

The spelling of 129958864 in words is "one hundred twenty-nine million, nine hundred fifty-eight thousand, eight hundred sixty-four".