315797017 has 2 divisors, whose sum is σ = 315797018. Its totient is φ = 315797016.

The previous prime is 315797011. The next prime is 315797033. The reversal of 315797017 is 710797513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262958656 + 52838361 = 16216^2 + 7269^2 .

It is an emirp because it is prime and its reverse (710797513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315797017 - 2²⁷ = 181579289 is a prime.

It is not a weakly prime, because it can be changed into another prime (315797011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157898508 + 157898509.

It is an arithmetic number, because the mean of its divisors is an integer number (157898509).

Almost surely, 2^315797017 is an apocalyptic number.

It is an amenable number.

315797017 is a deficient number, since it is larger than the sum of its proper divisors (1).

315797017 is an equidigital number, since it uses as much as digits as its factorization.

315797017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46305, while the sum is 40.

The square root of 315797017 is about 17770.6785745508. The cubic root of 315797017 is about 680.9825882877.

The spelling of 315797017 in words is "three hundred fifteen million, seven hundred ninety-seven thousand, seventeen".