12918532 has 12 divisors (see below), whose sum is σ = 24662736. Its totient is φ = 5872040.

The previous prime is 12918523. The next prime is 12918547. The reversal of 12918532 is 23581921.

It is a junction number, because it is equal to n+sod(n) for n = 12918494 and 12918503.

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, 146758 + ... + 146845.

It is an arithmetic number, because the mean of its divisors is an integer number (2055228).

Almost surely, 2^12918532 is an apocalyptic number.

It is an amenable number.

12918532 is a deficient number, since it is larger than the sum of its proper divisors (11744204).

12918532 is a wasteful number, since it uses less digits than its factorization.

12918532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293618 (or 293616 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 12918532 is about 3594.2359410590. The cubic root of 12918532 is about 234.6412634275.

The spelling of 12918532 in words is "twelve million, nine hundred eighteen thousand, five hundred thirty-two".