12686512 has 10 divisors (see below), whose sum is σ = 24580148. Its totient is φ = 6343248.

The previous prime is 12686503. The next prime is 12686521. The reversal of 12686512 is 21568621.

It is an interprime number because it is at equal distance from previous prime (12686503) and next prime (12686521).

It is a super-2 number, since 2×12686512² = 321895173452288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396438 + ... + 396469.

Almost surely, 2^12686512 is an apocalyptic number.

It is an amenable number.

12686512 is a deficient number, since it is larger than the sum of its proper divisors (11893636).

12686512 is an equidigital number, since it uses as much as digits as its factorization.

12686512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792915 (or 792909 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 12686512 is about 3561.8130214822. The cubic root of 12686512 is about 233.2280304887.

The spelling of 12686512 in words is "twelve million, six hundred eighty-six thousand, five hundred twelve".