315075457 has 2 divisors, whose sum is σ = 315075458. Its totient is φ = 315075456.

The previous prime is 315075419. The next prime is 315075469. The reversal of 315075457 is 754570513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237653056 + 77422401 = 15416^2 + 8799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315075457 is a prime.

It is not a weakly prime, because it can be changed into another prime (315075557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157537728 + 157537729.

It is an arithmetic number, because the mean of its divisors is an integer number (157537729).

Almost surely, 2^315075457 is an apocalyptic number.

It is an amenable number.

315075457 is a deficient number, since it is larger than the sum of its proper divisors (1).

315075457 is an equidigital number, since it uses as much as digits as its factorization.

315075457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 315075457 is about 17750.3649821630. The cubic root of 315075457 is about 680.4635370333.

The spelling of 315075457 in words is "three hundred fifteen million, seventy-five thousand, four hundred fifty-seven".