12912512 has 32 divisors (see below), whose sum is σ = 25887600. Its totient is φ = 6415360.

The previous prime is 12912509. The next prime is 12912527. The reversal of 12912512 is 21521921.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35789 + ... + 36147.

Almost surely, 2^12912512 is an apocalyptic number.

It is an amenable number.

12912512 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12912512 is an equidigital number, since it uses as much as digits as its factorization.

12912512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 642 counting only the distinct ones).

The product of its digits is 360, while the sum is 23.

The square root of 12912512 is about 3593.3983914952. The cubic root of 12912512 is about 234.6048103724.

The spelling of 12912512 in words is "twelve million, nine hundred twelve thousand, five hundred twelve".