316106431657 has 2 divisors, whose sum is σ = 316106431658. Its totient is φ = 316106431656.

The previous prime is 316106431639. The next prime is 316106431661. The reversal of 316106431657 is 756134601613.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314239846041 + 1866585616 = 560571^2 + 43204^2 .

It is an emirp because it is prime and its reverse (756134601613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316106431657 - 2¹¹ = 316106429609 is a prime.

It is a super-2 number, since 2×316106431657² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (316106431357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158053215828 + 158053215829.

It is an arithmetic number, because the mean of its divisors is an integer number (158053215829).

Almost surely, 2^316106431657 is an apocalyptic number.

It is an amenable number.

316106431657 is a deficient number, since it is larger than the sum of its proper divisors (1).

316106431657 is an equidigital number, since it uses as much as digits as its factorization.

316106431657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 316106431657 in words is "three hundred sixteen billion, one hundred six million, four hundred thirty-one thousand, six hundred fifty-seven".