315257351323547 has 2 divisors, whose sum is σ = 315257351323548. Its totient is φ = 315257351323546.

The previous prime is 315257351323429. The next prime is 315257351323571. The reversal of 315257351323547 is 745323153752513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315257351323547 - 2²⁸ = 315257082888091 is a prime.

It is a super-2 number, since 2×315257351323547² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315257351323492 and 315257351323501.

It is not a weakly prime, because it can be changed into another prime (315257351322547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157628675661773 + 157628675661774.

It is an arithmetic number, because the mean of its divisors is an integer number (157628675661774).

Almost surely, 2^{315257351323547} is an apocalyptic number.

315257351323547 is a deficient number, since it is larger than the sum of its proper divisors (1).

315257351323547 is an equidigital number, since it uses as much as digits as its factorization.

315257351323547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690000, while the sum is 56.

The spelling of 315257351323547 in words is "three hundred fifteen trillion, two hundred fifty-seven billion, three hundred fifty-one million, three hundred twenty-three thousand, five hundred forty-seven".