316228513 has 2 divisors, whose sum is σ = 316228514. Its totient is φ = 316228512.

The previous prime is 316228487. The next prime is 316228519. The reversal of 316228513 is 315822613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311593104 + 4635409 = 17652^2 + 2153^2 .

It is a cyclic number.

It is not a de Polignac number, because 316228513 - 2²⁵ = 282674081 is a prime.

It is equal to p_17082706 and since 316228513 and 17082706 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (316228519) 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, 158114256 + 158114257.

It is an arithmetic number, because the mean of its divisors is an integer number (158114257).

Almost surely, 2^316228513 is an apocalyptic number.

It is an amenable number.

316228513 is a deficient number, since it is larger than the sum of its proper divisors (1).

316228513 is an equidigital number, since it uses as much as digits as its factorization.

316228513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 316228513 is about 17782.8151033519. The cubic root of 316228513 is about 681.2926054997.

The spelling of 316228513 in words is "three hundred sixteen million, two hundred twenty-eight thousand, five hundred thirteen".