315166457 has 2 divisors, whose sum is σ = 315166458. Its totient is φ = 315166456.

The previous prime is 315166421. The next prime is 315166463. The reversal of 315166457 is 754661513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276091456 + 39075001 = 16616^2 + 6251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315166457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315166457.

It is not a weakly prime, because it can be changed into another prime (315169457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157583228 + 157583229.

It is an arithmetic number, because the mean of its divisors is an integer number (157583229).

Almost surely, 2^315166457 is an apocalyptic number.

It is an amenable number.

315166457 is a deficient number, since it is larger than the sum of its proper divisors (1).

315166457 is an equidigital number, since it uses as much as digits as its factorization.

315166457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 315166457 is about 17752.9281246785. The cubic root of 315166457 is about 680.5290411530.

It can be divided in two parts, 31516 and 6457, that added together give a palindrome (37973).

The spelling of 315166457 in words is "three hundred fifteen million, one hundred sixty-six thousand, four hundred fifty-seven".