316662197 has 2 divisors, whose sum is σ = 316662198. Its totient is φ = 316662196.

The previous prime is 316662193. The next prime is 316662209. The reversal of 316662197 is 791266613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222785476 + 93876721 = 14926^2 + 9689^2 .

It is a cyclic number.

It is not a de Polignac number, because 316662197 - 2² = 316662193 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316662193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158331098 + 158331099.

It is an arithmetic number, because the mean of its divisors is an integer number (158331099).

Almost surely, 2^316662197 is an apocalyptic number.

It is an amenable number.

316662197 is a deficient number, since it is larger than the sum of its proper divisors (1).

316662197 is an equidigital number, since it uses as much as digits as its factorization.

316662197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 41.

The square root of 316662197 is about 17795.0048328176. The cubic root of 316662197 is about 681.6039106933.

The spelling of 316662197 in words is "three hundred sixteen million, six hundred sixty-two thousand, one hundred ninety-seven".