315240445215547 has 2 divisors, whose sum is σ = 315240445215548. Its totient is φ = 315240445215546.

The previous prime is 315240445215469. The next prime is 315240445215667. The reversal of 315240445215547 is 745512544042513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315240445215547 - 2⁴³ = 306444352193339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315240445215494 and 315240445215503.

It is not a weakly prime, because it can be changed into another prime (315240445015547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157620222607773 + 157620222607774.

It is an arithmetic number, because the mean of its divisors is an integer number (157620222607774).

Almost surely, 2^{315240445215547} is an apocalyptic number.

315240445215547 is a deficient number, since it is larger than the sum of its proper divisors (1).

315240445215547 is an equidigital number, since it uses as much as digits as its factorization.

315240445215547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440000, while the sum is 52.

The spelling of 315240445215547 in words is "three hundred fifteen trillion, two hundred forty billion, four hundred forty-five million, two hundred fifteen thousand, five hundred forty-seven".