315640363 has 2 divisors, whose sum is σ = 315640364. Its totient is φ = 315640362.

The previous prime is 315640279. The next prime is 315640373. The reversal of 315640363 is 363046513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315640363 - 2⁹ = 315639851 is a prime.

It is not a weakly prime, because it can be changed into another prime (315640373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157820181 + 157820182.

It is an arithmetic number, because the mean of its divisors is an integer number (157820182).

Almost surely, 2^315640363 is an apocalyptic number.

315640363 is a deficient number, since it is larger than the sum of its proper divisors (1).

315640363 is an equidigital number, since it uses as much as digits as its factorization.

315640363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 315640363 is about 17766.2703739417. The cubic root of 315640363 is about 680.8699671153.

Adding to 315640363 its reverse (363046513), we get a palindrome (678686876).

The spelling of 315640363 in words is "three hundred fifteen million, six hundred forty thousand, three hundred sixty-three".