315456345637 has 2 divisors, whose sum is σ = 315456345638. Its totient is φ = 315456345636.

The previous prime is 315456345599. The next prime is 315456345641. The reversal of 315456345637 is 736543654513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242488289761 + 72968055876 = 492431^2 + 270126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315456345637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315451345637) 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, 157728172818 + 157728172819.

It is an arithmetic number, because the mean of its divisors is an integer number (157728172819).

Almost surely, 2^315456345637 is an apocalyptic number.

It is an amenable number.

315456345637 is a deficient number, since it is larger than the sum of its proper divisors (1).

315456345637 is an equidigital number, since it uses as much as digits as its factorization.

315456345637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608000, while the sum is 52.

The spelling of 315456345637 in words is "three hundred fifteen billion, four hundred fifty-six million, three hundred forty-five thousand, six hundred thirty-seven".