316602161 has 2 divisors, whose sum is σ = 316602162. Its totient is φ = 316602160.

The previous prime is 316602137. The next prime is 316602179. The reversal of 316602161 is 161206613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316306225 + 295936 = 17785^2 + 544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316602161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316602161.

It is not a weakly prime, because it can be changed into another prime (316602131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158301080 + 158301081.

It is an arithmetic number, because the mean of its divisors is an integer number (158301081).

Almost surely, 2^316602161 is an apocalyptic number.

It is an amenable number.

316602161 is a deficient number, since it is larger than the sum of its proper divisors (1).

316602161 is an equidigital number, since it uses as much as digits as its factorization.

316602161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 316602161 is about 17793.3178749777. The cubic root of 316602161 is about 681.5608328655.

Adding to 316602161 its reverse (161206613), we get a palindrome (477808774).

The spelling of 316602161 in words is "three hundred sixteen million, six hundred two thousand, one hundred sixty-one".