12565316 has 6 divisors (see below), whose sum is σ = 21989310. Its totient is φ = 6282656.

The previous prime is 12565307. The next prime is 12565339. The reversal of 12565316 is 61356521.

It can be written as a sum of positive squares in only one way, i.e., 8940100 + 3625216 = 2990^2 + 1904^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1570661 + ... + 1570668.

It is an arithmetic number, because the mean of its divisors is an integer number (3664885).

Almost surely, 2^12565316 is an apocalyptic number.

It is an amenable number.

12565316 is a deficient number, since it is larger than the sum of its proper divisors (9423994).

12565316 is a wasteful number, since it uses less digits than its factorization.

12565316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141333 (or 3141331 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 12565316 is about 3544.7589480810. The cubic root of 12565316 is about 232.4829663399.

The spelling of 12565316 in words is "twelve million, five hundred sixty-five thousand, three hundred sixteen".