315047521307 has 2 divisors, whose sum is σ = 315047521308. Its totient is φ = 315047521306.

The previous prime is 315047521219. The next prime is 315047521331. The reversal of 315047521307 is 703125740513.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315047521307 - 2¹⁰ = 315047520283 is a prime.

It is not a weakly prime, because it can be changed into another prime (315047524307) 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, 157523760653 + 157523760654.

It is an arithmetic number, because the mean of its divisors is an integer number (157523760654).

Almost surely, 2^315047521307 is an apocalyptic number.

315047521307 is a deficient number, since it is larger than the sum of its proper divisors (1).

315047521307 is an equidigital number, since it uses as much as digits as its factorization.

315047521307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 315047521307 in words is "three hundred fifteen billion, forty-seven million, five hundred twenty-one thousand, three hundred seven".