316199497 has 2 divisors, whose sum is σ = 316199498. Its totient is φ = 316199496.

The previous prime is 316199491. The next prime is 316199551. The reversal of 316199497 is 794991613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292957456 + 23242041 = 17116^2 + 4821^2 .

It is a cyclic number.

It is not a de Polignac number, because 316199497 - 2¹⁹ = 315675209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316199497.

It is not a weakly prime, because it can be changed into another prime (316199491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158099748 + 158099749.

It is an arithmetic number, because the mean of its divisors is an integer number (158099749).

Almost surely, 2^316199497 is an apocalyptic number.

It is an amenable number.

316199497 is a deficient number, since it is larger than the sum of its proper divisors (1).

316199497 is an equidigital number, since it uses as much as digits as its factorization.

316199497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 49.

The square root of 316199497 is about 17781.9992408053. Note that the first 3 decimals coincide. The cubic root of 316199497 is about 681.2717672028.

The spelling of 316199497 in words is "three hundred sixteen million, one hundred ninety-nine thousand, four hundred ninety-seven".