315321269 has 2 divisors, whose sum is σ = 315321270. Its totient is φ = 315321268.

The previous prime is 315321247. The next prime is 315321301. The reversal of 315321269 is 962123513.

It is an a-pointer prime, because the next prime (315321301) can be obtained adding 315321269 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191822500 + 123498769 = 13850^2 + 11113^2 .

It is a cyclic number.

It is not a de Polignac number, because 315321269 - 2²⁴ = 298544053 is a prime.

It is a super-2 number, since 2×315321269² = 198855005367540722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315321239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157660634 + 157660635.

It is an arithmetic number, because the mean of its divisors is an integer number (157660635).

Almost surely, 2^315321269 is an apocalyptic number.

It is an amenable number.

315321269 is a deficient number, since it is larger than the sum of its proper divisors (1).

315321269 is an equidigital number, since it uses as much as digits as its factorization.

315321269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 32.

The square root of 315321269 is about 17757.2877715038. The cubic root of 315321269 is about 680.6404498114.

The spelling of 315321269 in words is "three hundred fifteen million, three hundred twenty-one thousand, two hundred sixty-nine".