313155263 has 2 divisors, whose sum is σ = 313155264. Its totient is φ = 313155262.

The previous prime is 313155259. The next prime is 313155277. The reversal of 313155263 is 362551313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313155263 - 2² = 313155259 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313155223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156577631 + 156577632.

It is an arithmetic number, because the mean of its divisors is an integer number (156577632).

Almost surely, 2^313155263 is an apocalyptic number.

313155263 is a deficient number, since it is larger than the sum of its proper divisors (1).

313155263 is an equidigital number, since it uses as much as digits as its factorization.

313155263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 29.

The square root of 313155263 is about 17696.1934607418. The cubic root of 313155263 is about 679.0783816659.

The spelling of 313155263 in words is "three hundred thirteen million, one hundred fifty-five thousand, two hundred sixty-three".