315164839 has 4 divisors (see below), whose sum is σ = 343816200. Its totient is φ = 286513480.

The previous prime is 315164813. The next prime is 315164849. The reversal of 315164839 is 938461513.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 315164839 - 2²¹ = 313067687 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315164849) 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, 14325664 + ... + 14325685.

It is an arithmetic number, because the mean of its divisors is an integer number (85954050).

Almost surely, 2^315164839 is an apocalyptic number.

315164839 is a deficient number, since it is larger than the sum of its proper divisors (28651361).

315164839 is a wasteful number, since it uses less digits than its factorization.

315164839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28651360.

The product of its digits is 77760, while the sum is 40.

The square root of 315164839 is about 17752.8825546726. The cubic root of 315164839 is about 680.5278765855.

The spelling of 315164839 in words is "three hundred fifteen million, one hundred sixty-four thousand, eight hundred thirty-nine".