315257234641 has 2 divisors, whose sum is σ = 315257234642. Its totient is φ = 315257234640.

The previous prime is 315257234629. The next prime is 315257234681. The reversal of 315257234641 is 146432752513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306837337041 + 8419897600 = 553929^2 + 91760^2 .

It is a cyclic number.

It is not a de Polignac number, because 315257234641 - 2⁵ = 315257234609 is a prime.

It is not a weakly prime, because it can be changed into another prime (315257234681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157628617320 + 157628617321.

It is an arithmetic number, because the mean of its divisors is an integer number (157628617321).

Almost surely, 2^315257234641 is an apocalyptic number.

It is an amenable number.

315257234641 is a deficient number, since it is larger than the sum of its proper divisors (1).

315257234641 is an equidigital number, since it uses as much as digits as its factorization.

315257234641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 43.

The spelling of 315257234641 in words is "three hundred fifteen billion, two hundred fifty-seven million, two hundred thirty-four thousand, six hundred forty-one".