315567361 has 2 divisors, whose sum is σ = 315567362. Its totient is φ = 315567360.

The previous prime is 315567347. The next prime is 315567367. The reversal of 315567361 is 163765513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270931600 + 44635761 = 16460^2 + 6681^2 .

It is an emirp because it is prime and its reverse (163765513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315567361 - 2⁷ = 315567233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315567361.

It is not a weakly prime, because it can be changed into another prime (315567367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157783680 + 157783681.

It is an arithmetic number, because the mean of its divisors is an integer number (157783681).

Almost surely, 2^315567361 is an apocalyptic number.

It is an amenable number.

315567361 is a deficient number, since it is larger than the sum of its proper divisors (1).

315567361 is an equidigital number, since it uses as much as digits as its factorization.

315567361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 37.

The square root of 315567361 is about 17764.2157440175. The cubic root of 315567361 is about 680.8174720316.

The spelling of 315567361 in words is "three hundred fifteen million, five hundred sixty-seven thousand, three hundred sixty-one".