12681964 has 12 divisors (see below), whose sum is σ = 22413888. Its totient is φ = 6278000.

The previous prime is 12681959. The next prime is 12682001. The reversal of 12681964 is 46918621.

It is a happy 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, 15292 + ... + 16099.

It is an arithmetic number, because the mean of its divisors is an integer number (1867824).

Almost surely, 2^12681964 is an apocalyptic number.

It is an amenable number.

12681964 is a deficient number, since it is larger than the sum of its proper divisors (9731924).

12681964 is a wasteful number, since it uses less digits than its factorization.

12681964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31496 (or 31494 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 12681964 is about 3561.1745253497. The cubic root of 12681964 is about 233.2001571100.

The spelling of 12681964 in words is "twelve million, six hundred eighty-one thousand, nine hundred sixty-four".