315680237 has 2 divisors, whose sum is σ = 315680238. Its totient is φ = 315680236.

The previous prime is 315680213. The next prime is 315680249. The reversal of 315680237 is 732086513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251983876 + 63696361 = 15874^2 + 7981^2 .

It is a cyclic number.

It is not a de Polignac number, because 315680237 - 2¹⁶ = 315614701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315680197 and 315680206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315680737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157840118 + 157840119.

It is an arithmetic number, because the mean of its divisors is an integer number (157840119).

Almost surely, 2^315680237 is an apocalyptic number.

It is an amenable number.

315680237 is a deficient number, since it is larger than the sum of its proper divisors (1).

315680237 is an equidigital number, since it uses as much as digits as its factorization.

315680237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 315680237 is about 17767.3925211326. The cubic root of 315680237 is about 680.8986367333.

The spelling of 315680237 in words is "three hundred fifteen million, six hundred eighty thousand, two hundred thirty-seven".