315365279 has 2 divisors, whose sum is σ = 315365280. Its totient is φ = 315365278.

The previous prime is 315365233. The next prime is 315365291. The reversal of 315365279 is 972563513.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (972563513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315365279 - 2²⁸ = 46929823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315365299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157682639 + 157682640.

It is an arithmetic number, because the mean of its divisors is an integer number (157682640).

Almost surely, 2^315365279 is an apocalyptic number.

315365279 is a deficient number, since it is larger than the sum of its proper divisors (1).

315365279 is an equidigital number, since it uses as much as digits as its factorization.

315365279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 41.

The square root of 315365279 is about 17758.5269377840. The cubic root of 315365279 is about 680.6721144400.

The spelling of 315365279 in words is "three hundred fifteen million, three hundred sixty-five thousand, two hundred seventy-nine".