313818943 has 2 divisors, whose sum is σ = 313818944. Its totient is φ = 313818942.

The previous prime is 313818937. The next prime is 313818971. The reversal of 313818943 is 349818313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313818943 - 2⁹ = 313818431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313818896 and 313818905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313818643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156909471 + 156909472.

It is an arithmetic number, because the mean of its divisors is an integer number (156909472).

Almost surely, 2^313818943 is an apocalyptic number.

313818943 is a deficient number, since it is larger than the sum of its proper divisors (1).

313818943 is an equidigital number, since it uses as much as digits as its factorization.

313818943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 313818943 is about 17714.9355911897. The cubic root of 313818943 is about 679.5577740314.

The spelling of 313818943 in words is "three hundred thirteen million, eight hundred eighteen thousand, nine hundred forty-three".