315562731247 has 2 divisors, whose sum is σ = 315562731248. Its totient is φ = 315562731246.

The previous prime is 315562731203. The next prime is 315562731283. The reversal of 315562731247 is 742137265513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315562731247 - 2⁷ = 315562731119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315562731197 and 315562731206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315562761247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157781365623 + 157781365624.

It is an arithmetic number, because the mean of its divisors is an integer number (157781365624).

Almost surely, 2^315562731247 is an apocalyptic number.

315562731247 is a deficient number, since it is larger than the sum of its proper divisors (1).

315562731247 is an equidigital number, since it uses as much as digits as its factorization.

315562731247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 46.

The spelling of 315562731247 in words is "three hundred fifteen billion, five hundred sixty-two million, seven hundred thirty-one thousand, two hundred forty-seven".