315253230217 has 2 divisors, whose sum is σ = 315253230218. Its totient is φ = 315253230216.

The previous prime is 315253230199. The next prime is 315253230269. The reversal of 315253230217 is 712032352513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230089064976 + 85164165241 = 479676^2 + 291829^2 .

It is a cyclic number.

It is not a de Polignac number, because 315253230217 - 2²⁷ = 315119012489 is a prime.

It is not a weakly prime, because it can be changed into another prime (315253530217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157626615108 + 157626615109.

It is an arithmetic number, because the mean of its divisors is an integer number (157626615109).

Almost surely, 2^315253230217 is an apocalyptic number.

It is an amenable number.

315253230217 is a deficient number, since it is larger than the sum of its proper divisors (1).

315253230217 is an equidigital number, since it uses as much as digits as its factorization.

315253230217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 315253230217 in words is "three hundred fifteen billion, two hundred fifty-three million, two hundred thirty thousand, two hundred seventeen".