315747892139 has 2 divisors, whose sum is σ = 315747892140. Its totient is φ = 315747892138.

The previous prime is 315747892111. The next prime is 315747892153. The reversal of 315747892139 is 931298747513.

It is a strong prime.

It is an emirp because it is prime and its reverse (931298747513) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315747892139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (315747892199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157873946069 + 157873946070.

It is an arithmetic number, because the mean of its divisors is an integer number (157873946070).

Almost surely, 2^315747892139 is an apocalyptic number.

315747892139 is a deficient number, since it is larger than the sum of its proper divisors (1).

315747892139 is an equidigital number, since it uses as much as digits as its factorization.

315747892139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 59.

The spelling of 315747892139 in words is "three hundred fifteen billion, seven hundred forty-seven million, eight hundred ninety-two thousand, one hundred thirty-nine".