315475157 has 2 divisors, whose sum is σ = 315475158. Its totient is φ = 315475156.

The previous prime is 315475141. The next prime is 315475177. The reversal of 315475157 is 751574513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253159921 + 62315236 = 15911^2 + 7894^2 .

It is a cyclic number.

It is not a de Polignac number, because 315475157 - 2⁴ = 315475141 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315475157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315475177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157737578 + 157737579.

It is an arithmetic number, because the mean of its divisors is an integer number (157737579).

Almost surely, 2^315475157 is an apocalyptic number.

It is an amenable number.

315475157 is a deficient number, since it is larger than the sum of its proper divisors (1).

315475157 is an equidigital number, since it uses as much as digits as its factorization.

315475157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73500, while the sum is 38.

The square root of 315475157 is about 17761.6203371201. The cubic root of 315475157 is about 680.7511573903.

The spelling of 315475157 in words is "three hundred fifteen million, four hundred seventy-five thousand, one hundred fifty-seven".