316246493 has 2 divisors, whose sum is σ = 316246494. Its totient is φ = 316246492.

The previous prime is 316246477. The next prime is 316246501. The reversal of 316246493 is 394642613.

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., 309830404 + 6416089 = 17602^2 + 2533^2 .

It is a cyclic number.

It is not a de Polignac number, because 316246493 - 2⁴ = 316246477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316246423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158123246 + 158123247.

It is an arithmetic number, because the mean of its divisors is an integer number (158123247).

Almost surely, 2^316246493 is an apocalyptic number.

It is an amenable number.

316246493 is a deficient number, since it is larger than the sum of its proper divisors (1).

316246493 is an equidigital number, since it uses as much as digits as its factorization.

316246493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 316246493 is about 17783.3206404203. The cubic root of 316246493 is about 681.3055174799.

The spelling of 316246493 in words is "three hundred sixteen million, two hundred forty-six thousand, four hundred ninety-three".