315616601 has 2 divisors, whose sum is σ = 315616602. Its totient is φ = 315616600.

The previous prime is 315616591. The next prime is 315616607. The reversal of 315616601 is 106616513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180499225 + 135117376 = 13435^2 + 11624^2 .

It is a cyclic number.

It is not a de Polignac number, because 315616601 - 2¹⁰ = 315615577 is a prime.

It is a super-2 number, since 2×315616601² = 199227677653586402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (315616607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157808300 + 157808301.

It is an arithmetic number, because the mean of its divisors is an integer number (157808301).

Almost surely, 2^315616601 is an apocalyptic number.

It is an amenable number.

315616601 is a deficient number, since it is larger than the sum of its proper divisors (1).

315616601 is an equidigital number, since it uses as much as digits as its factorization.

315616601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 315616601 is about 17765.6016222362. The cubic root of 315616601 is about 680.8528809627.

The spelling of 315616601 in words is "three hundred fifteen million, six hundred sixteen thousand, six hundred one".