313265287 has 2 divisors, whose sum is σ = 313265288. Its totient is φ = 313265286.

The previous prime is 313265233. The next prime is 313265311. The reversal of 313265287 is 782562313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313265287 - 2¹¹ = 313263239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313265087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156632643 + 156632644.

It is an arithmetic number, because the mean of its divisors is an integer number (156632644).

Almost surely, 2^313265287 is an apocalyptic number.

313265287 is a deficient number, since it is larger than the sum of its proper divisors (1).

313265287 is an equidigital number, since it uses as much as digits as its factorization.

313265287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 313265287 is about 17699.3018788878. The cubic root of 313265287 is about 679.1579015082.

The spelling of 313265287 in words is "three hundred thirteen million, two hundred sixty-five thousand, two hundred eighty-seven".