315320347 has 2 divisors, whose sum is σ = 315320348. Its totient is φ = 315320346.

The previous prime is 315320339. The next prime is 315320359. The reversal of 315320347 is 743023513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315320347 - 2³ = 315320339 is a prime.

It is not a weakly prime, because it can be changed into another prime (315320377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157660173 + 157660174.

It is an arithmetic number, because the mean of its divisors is an integer number (157660174).

Almost surely, 2^315320347 is an apocalyptic number.

315320347 is a deficient number, since it is larger than the sum of its proper divisors (1).

315320347 is an equidigital number, since it uses as much as digits as its factorization.

315320347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 315320347 is about 17757.2618103130. The cubic root of 315320347 is about 680.6397864127.

The spelling of 315320347 in words is "three hundred fifteen million, three hundred twenty thousand, three hundred forty-seven".