315165745231097 has 2 divisors, whose sum is σ = 315165745231098. Its totient is φ = 315165745231096.

The previous prime is 315165745231093. The next prime is 315165745231147. The reversal of 315165745231097 is 790132547561513.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307903561046761 + 7262184184336 = 17547181^2 + 2694844^2 .

It is a cyclic number.

It is not a de Polignac number, because 315165745231097 - 2² = 315165745231093 is a prime.

It is not a weakly prime, because it can be changed into another prime (315165745231093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157582872615548 + 157582872615549.

It is an arithmetic number, because the mean of its divisors is an integer number (157582872615549).

Almost surely, 2^{315165745231097} is an apocalyptic number.

It is an amenable number.

315165745231097 is a deficient number, since it is larger than the sum of its proper divisors (1).

315165745231097 is an equidigital number, since it uses as much as digits as its factorization.

315165745231097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814000, while the sum is 59.

The spelling of 315165745231097 in words is "three hundred fifteen trillion, one hundred sixty-five billion, seven hundred forty-five million, two hundred thirty-one thousand, ninety-seven".