313861943 has 2 divisors, whose sum is σ = 313861944. Its totient is φ = 313861942.

The previous prime is 313861921. The next prime is 313861957. The reversal of 313861943 is 349168313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313861943 - 2¹² = 313857847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313861897 and 313861906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313861913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156930971 + 156930972.

It is an arithmetic number, because the mean of its divisors is an integer number (156930972).

Almost surely, 2^313861943 is an apocalyptic number.

313861943 is a deficient number, since it is larger than the sum of its proper divisors (1).

313861943 is an equidigital number, since it uses as much as digits as its factorization.

313861943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 313861943 is about 17716.1492147701. The cubic root of 313861943 is about 679.5888106640.

The spelling of 313861943 in words is "three hundred thirteen million, eight hundred sixty-one thousand, nine hundred forty-three".