315266489 has 2 divisors, whose sum is σ = 315266490. Its totient is φ = 315266488.

The previous prime is 315266467. The next prime is 315266509. The reversal of 315266489 is 984662513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239228089 + 76038400 = 15467^2 + 8720^2 .

It is a cyclic number.

It is not a de Polignac number, because 315266489 - 2¹⁶ = 315200953 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (315266089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157633244 + 157633245.

It is an arithmetic number, because the mean of its divisors is an integer number (157633245).

Almost surely, 2^315266489 is an apocalyptic number.

It is an amenable number.

315266489 is a deficient number, since it is larger than the sum of its proper divisors (1).

315266489 is an equidigital number, since it uses as much as digits as its factorization.

315266489 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 315266489 is about 17755.7452392176. The cubic root of 315266489 is about 680.6010321900.

The spelling of 315266489 in words is "three hundred fifteen million, two hundred sixty-six thousand, four hundred eighty-nine".