129456264 has 32 divisors (see below), whose sum is σ = 369875520. Its totient is φ = 36987456.

The previous prime is 129456247. The next prime is 129456277. The reversal of 129456264 is 462654921.

It is a happy number.

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, 385119 + ... + 385454.

It is an arithmetic number, because the mean of its divisors is an integer number (11558610).

Almost surely, 2^129456264 is an apocalyptic number.

129456264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129456264 is an abundant number, since it is smaller than the sum of its proper divisors (240419256).

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

129456264 is a wasteful number, since it uses less digits than its factorization.

129456264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770589 (or 770585 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 129456264 is about 11377.8848649474. The cubic root of 129456264 is about 505.8724441139.

The spelling of 129456264 in words is "one hundred twenty-nine million, four hundred fifty-six thousand, two hundred sixty-four".