315130171 has 2 divisors, whose sum is σ = 315130172. Its totient is φ = 315130170.

The previous prime is 315130157. The next prime is 315130213. The reversal of 315130171 is 171031513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315130171 - 2¹⁵ = 315097403 is a prime.

It is not a weakly prime, because it can be changed into another prime (315130111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157565085 + 157565086.

It is an arithmetic number, because the mean of its divisors is an integer number (157565086).

Almost surely, 2^315130171 is an apocalyptic number.

315130171 is a deficient number, since it is larger than the sum of its proper divisors (1).

315130171 is an equidigital number, since it uses as much as digits as its factorization.

315130171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 315130171 is about 17751.9061230055. The cubic root of 315130171 is about 680.5029230769.

Adding to 315130171 its reverse (171031513), we get a palindrome (486161684).

The spelling of 315130171 in words is "three hundred fifteen million, one hundred thirty thousand, one hundred seventy-one".