313008691 has 2 divisors, whose sum is σ = 313008692. Its totient is φ = 313008690.

The previous prime is 313008671. The next prime is 313008721. The reversal of 313008691 is 196800313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313008691 - 2⁵ = 313008659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313008671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156504345 + 156504346.

It is an arithmetic number, because the mean of its divisors is an integer number (156504346).

Almost surely, 2^313008691 is an apocalyptic number.

313008691 is a deficient number, since it is larger than the sum of its proper divisors (1).

313008691 is an equidigital number, since it uses as much as digits as its factorization.

313008691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 313008691 is about 17692.0516334313. The cubic root of 313008691 is about 678.9724178185.

The spelling of 313008691 in words is "three hundred thirteen million, eight thousand, six hundred ninety-one".