316265489 has 2 divisors, whose sum is σ = 316265490. Its totient is φ = 316265488.

The previous prime is 316265471. The next prime is 316265497. The reversal of 316265489 is 984562613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199798225 + 116467264 = 14135^2 + 10792^2 .

It is an emirp because it is prime and its reverse (984562613) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316265489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (316265189) 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, 158132744 + 158132745.

It is an arithmetic number, because the mean of its divisors is an integer number (158132745).

Almost surely, 2^316265489 is an apocalyptic number.

It is an amenable number.

316265489 is a deficient number, since it is larger than the sum of its proper divisors (1).

316265489 is an equidigital number, since it uses as much as digits as its factorization.

316265489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 316265489 is about 17783.8547283765. The cubic root of 316265489 is about 681.3191585487.

The spelling of 316265489 in words is "three hundred sixteen million, two hundred sixty-five thousand, four hundred eighty-nine".