315105444139 has 2 divisors, whose sum is σ = 315105444140. Its totient is φ = 315105444138.

The previous prime is 315105444133. The next prime is 315105444163. The reversal of 315105444139 is 931444501513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315105444139 - 2³ = 315105444131 is a prime.

It is not a weakly prime, because it can be changed into another prime (315105444131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157552722069 + 157552722070.

It is an arithmetic number, because the mean of its divisors is an integer number (157552722070).

Almost surely, 2^315105444139 is an apocalyptic number.

315105444139 is a deficient number, since it is larger than the sum of its proper divisors (1).

315105444139 is an equidigital number, since it uses as much as digits as its factorization.

315105444139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 315105444139 in words is "three hundred fifteen billion, one hundred five million, four hundred forty-four thousand, one hundred thirty-nine".