313123169 has 2 divisors, whose sum is σ = 313123170. Its totient is φ = 313123168.

The previous prime is 313123141. The next prime is 313123177. The reversal of 313123169 is 961321313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188018944 + 125104225 = 13712^2 + 11185^2 .

It is a cyclic number.

It is not a de Polignac number, because 313123169 - 2⁸ = 313122913 is a prime.

It is a super-2 number, since 2×313123169² = 196092237929205122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313120169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156561584 + 156561585.

It is an arithmetic number, because the mean of its divisors is an integer number (156561585).

Almost surely, 2^313123169 is an apocalyptic number.

It is an amenable number.

313123169 is a deficient number, since it is larger than the sum of its proper divisors (1).

313123169 is an equidigital number, since it uses as much as digits as its factorization.

313123169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 29.

The square root of 313123169 is about 17695.2866323210. The cubic root of 313123169 is about 679.0551822195.

The spelling of 313123169 in words is "three hundred thirteen million, one hundred twenty-three thousand, one hundred sixty-nine".