12565364 has 18 divisors (see below), whose sum is σ = 25579890. Its totient is φ = 5385072.

The previous prime is 12565361. The next prime is 12565379. The reversal of 12565364 is 46356521.

It can be written as a sum of positive squares in only one way, i.e., 12545764 + 19600 = 3542^2 + 140^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12565364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12565361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31859 + ... + 32250.

It is an arithmetic number, because the mean of its divisors is an integer number (1421105).

Almost surely, 2^12565364 is an apocalyptic number.

12565364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12565364 is an abundant number, since it is smaller than the sum of its proper divisors (13014526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12565364 is a wasteful number, since it uses less digits than its factorization.

12565364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64127 (or 64118 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 12565364 is about 3544.7657186336. The cubic root of 12565364 is about 232.4832623708.

The spelling of 12565364 in words is "twelve million, five hundred sixty-five thousand, three hundred sixty-four".