315450236365531 has 2 divisors, whose sum is σ = 315450236365532. Its totient is φ = 315450236365530.

The previous prime is 315450236365507. The next prime is 315450236365619. The reversal of 315450236365531 is 135563632054513.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315450236365531 - 2¹⁷ = 315450236234459 is a prime.

It is a super-2 number, since 2×315450236365531² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315450236365501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157725118182765 + 157725118182766.

It is an arithmetic number, because the mean of its divisors is an integer number (157725118182766).

Almost surely, 2^{315450236365531} is an apocalyptic number.

315450236365531 is a deficient number, since it is larger than the sum of its proper divisors (1).

315450236365531 is an equidigital number, since it uses as much as digits as its factorization.

315450236365531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580000, while the sum is 52.

The spelling of 315450236365531 in words is "three hundred fifteen trillion, four hundred fifty billion, two hundred thirty-six million, three hundred sixty-five thousand, five hundred thirty-one".