315634839 has 16 divisors (see below), whose sum is σ = 467841024. Its totient is φ = 187970400.

The previous prime is 315634829. The next prime is 315634849. The reversal of 315634839 is 938436513.

It is an interprime number because it is at equal distance from previous prime (315634829) and next prime (315634849).

It is not a de Polignac number, because 315634839 - 2²⁰ = 314586263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315634839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315634829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129327 + ... + 131744.

It is an arithmetic number, because the mean of its divisors is an integer number (29240064).

Almost surely, 2^315634839 is an apocalyptic number.

315634839 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

315634839 is a deficient number, since it is larger than the sum of its proper divisors (152206185).

315634839 is a wasteful number, since it uses less digits than its factorization.

315634839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261118.

The product of its digits is 233280, while the sum is 42.

The square root of 315634839 is about 17766.1149101316. The cubic root of 315634839 is about 680.8659951395.

The spelling of 315634839 in words is "three hundred fifteen million, six hundred thirty-four thousand, eight hundred thirty-nine".