315210423457 has 2 divisors, whose sum is σ = 315210423458. Its totient is φ = 315210423456.

The previous prime is 315210423443. The next prime is 315210423499. The reversal of 315210423457 is 754324012513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176331966561 + 138878456896 = 419919^2 + 372664^2 .

It is a cyclic number.

It is not a de Polignac number, because 315210423457 - 2²⁷ = 315076205729 is a prime.

It is a super-2 number, since 2×315210423457² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315210426457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157605211728 + 157605211729.

It is an arithmetic number, because the mean of its divisors is an integer number (157605211729).

Almost surely, 2^315210423457 is an apocalyptic number.

It is an amenable number.

315210423457 is a deficient number, since it is larger than the sum of its proper divisors (1).

315210423457 is an equidigital number, since it uses as much as digits as its factorization.

315210423457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 315210423457 in words is "three hundred fifteen billion, two hundred ten million, four hundred twenty-three thousand, four hundred fifty-seven".