12818564 has 12 divisors (see below), whose sum is σ = 24471888. Its totient is φ = 5826600.

The previous prime is 12818563. The next prime is 12818569. The reversal of 12818564 is 46581821.

It is not an unprimeable number, because it can be changed into a prime (12818563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145622 + ... + 145709.

It is an arithmetic number, because the mean of its divisors is an integer number (2039324).

Almost surely, 2^12818564 is an apocalyptic number.

It is an amenable number.

12818564 is a deficient number, since it is larger than the sum of its proper divisors (11653324).

12818564 is a wasteful number, since it uses less digits than its factorization.

12818564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291346 (or 291344 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 12818564 is about 3580.3022218802. The cubic root of 12818564 is about 234.0344508169.

The spelling of 12818564 in words is "twelve million, eight hundred eighteen thousand, five hundred sixty-four".