316242473 has 2 divisors, whose sum is σ = 316242474. Its totient is φ = 316242472.

The previous prime is 316242397. The next prime is 316242491. The reversal of 316242473 is 374242613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218093824 + 98148649 = 14768^2 + 9907^2 .

It is an emirp because it is prime and its reverse (374242613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316242473 - 2⁸ = 316242217 is a prime.

It is not a weakly prime, because it can be changed into another prime (316245473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158121236 + 158121237.

It is an arithmetic number, because the mean of its divisors is an integer number (158121237).

Almost surely, 2^316242473 is an apocalyptic number.

It is an amenable number.

316242473 is a deficient number, since it is larger than the sum of its proper divisors (1).

316242473 is an equidigital number, since it uses as much as digits as its factorization.

316242473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 32.

The square root of 316242473 is about 17783.2076128015. The cubic root of 316242473 is about 681.3026306391.

The spelling of 316242473 in words is "three hundred sixteen million, two hundred forty-two thousand, four hundred seventy-three".