316091597 has 2 divisors, whose sum is σ = 316091598. Its totient is φ = 316091596.

The previous prime is 316091549. The next prime is 316091609. The reversal of 316091597 is 795190613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203604361 + 112487236 = 14269^2 + 10606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316091597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316091527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158045798 + 158045799.

It is an arithmetic number, because the mean of its divisors is an integer number (158045799).

Almost surely, 2^316091597 is an apocalyptic number.

It is an amenable number.

316091597 is a deficient number, since it is larger than the sum of its proper divisors (1).

316091597 is an equidigital number, since it uses as much as digits as its factorization.

316091597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 316091597 is about 17778.9650148708. The cubic root of 316091597 is about 681.1942659339.

The spelling of 316091597 in words is "three hundred sixteen million, ninety-one thousand, five hundred ninety-seven".