1264915164 has 24 divisors (see below), whose sum is σ = 2952208000. Its totient is φ = 421532784.

The previous prime is 1264915123. The next prime is 1264915181. The reversal of 1264915164 is 4615194621.

It is a congruent 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, 48087 + ... + 69585.

Almost surely, 2^1264915164 is an apocalyptic number.

It is an amenable number.

1264915164 is an abundant number, since it is smaller than the sum of its proper divisors (1687292836).

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

1264915164 is a wasteful number, since it uses less digits than its factorization.

1264915164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26409 (or 26407 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 1264915164 is about 35565.6458397707. The cubic root of 1264915164 is about 1081.4849155833.

The spelling of 1264915164 in words is "one billion, two hundred sixty-four million, nine hundred fifteen thousand, one hundred sixty-four".