12565379 has 2 divisors, whose sum is σ = 12565380. Its totient is φ = 12565378.

The previous prime is 12565361. The next prime is 12565409. The reversal of 12565379 is 97356521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (97356521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12565379 - 2⁸ = 12565123 is a prime.

It is not a weakly prime, because it can be changed into another prime (12565339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6282689 + 6282690.

It is an arithmetic number, because the mean of its divisors is an integer number (6282690).

Almost surely, 2^12565379 is an apocalyptic number.

12565379 is a deficient number, since it is larger than the sum of its proper divisors (1).

12565379 is an equidigital number, since it uses as much as digits as its factorization.

12565379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 12565379 is about 3544.7678344287. The cubic root of 12565379 is about 232.4833548804.

The spelling of 12565379 in words is "twelve million, five hundred sixty-five thousand, three hundred seventy-nine".