316115641 has 2 divisors, whose sum is σ = 316115642. Its totient is φ = 316115640.

The previous prime is 316115627. The next prime is 316115647. The reversal of 316115641 is 146511613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299428416 + 16687225 = 17304^2 + 4085^2 .

It is a cyclic number.

It is not a de Polignac number, because 316115641 - 2⁵ = 316115609 is a prime.

It is not a weakly prime, because it can be changed into another prime (316115647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158057820 + 158057821.

It is an arithmetic number, because the mean of its divisors is an integer number (158057821).

Almost surely, 2^316115641 is an apocalyptic number.

It is an amenable number.

316115641 is a deficient number, since it is larger than the sum of its proper divisors (1).

316115641 is an equidigital number, since it uses as much as digits as its factorization.

316115641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 316115641 is about 17779.6411943549. The cubic root of 316115641 is about 681.2115375305.

The spelling of 316115641 in words is "three hundred sixteen million, one hundred fifteen thousand, six hundred forty-one".