315233137 has 2 divisors, whose sum is σ = 315233138. Its totient is φ = 315233136.

The previous prime is 315233131. The next prime is 315233143. The reversal of 315233137 is 731332513.

It is a balanced prime because it is at equal distance from previous prime (315233131) and next prime (315233143).

It can be written as a sum of positive squares in only one way, i.e., 247401441 + 67831696 = 15729^2 + 8236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315233137 is a prime.

It is not a weakly prime, because it can be changed into another prime (315233131) 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 as a sum of consecutive naturals, namely, 157616568 + 157616569.

It is an arithmetic number, because the mean of its divisors is an integer number (157616569).

Almost surely, 2^315233137 is an apocalyptic number.

It is an amenable number.

315233137 is a deficient number, since it is larger than the sum of its proper divisors (1).

315233137 is an equidigital number, since it uses as much as digits as its factorization.

315233137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 28.

The square root of 315233137 is about 17754.8060254118. The cubic root of 315233137 is about 680.5770311126.

The spelling of 315233137 in words is "three hundred fifteen million, two hundred thirty-three thousand, one hundred thirty-seven".