313442369 has 2 divisors, whose sum is σ = 313442370. Its totient is φ = 313442368.

The previous prime is 313442291. The next prime is 313442387. The reversal of 313442369 is 963244313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288592144 + 24850225 = 16988^2 + 4985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313442369 is a prime.

It is a super-2 number, since 2×313442369² = 196492237368664322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313442669) 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, 156721184 + 156721185.

It is an arithmetic number, because the mean of its divisors is an integer number (156721185).

Almost surely, 2^313442369 is an apocalyptic number.

It is an amenable number.

313442369 is a deficient number, since it is larger than the sum of its proper divisors (1).

313442369 is an equidigital number, since it uses as much as digits as its factorization.

313442369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 313442369 is about 17704.3036858274. The cubic root of 313442369 is about 679.2858484276.

The spelling of 313442369 in words is "three hundred thirteen million, four hundred forty-two thousand, three hundred sixty-nine".