313271669 has 2 divisors, whose sum is σ = 313271670. Its totient is φ = 313271668.

The previous prime is 313271627. The next prime is 313271671. The reversal of 313271669 is 966172313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308704900 + 4566769 = 17570^2 + 2137^2 .

It is an emirp because it is prime and its reverse (966172313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313271669 - 2¹⁶ = 313206133 is a prime.

It is a super-2 number, since 2×313271669² = 196278277196091122, which contains 22 as substring.

Together with 313271671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313273669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156635834 + 156635835.

It is an arithmetic number, because the mean of its divisors is an integer number (156635835).

Almost surely, 2^313271669 is an apocalyptic number.

It is an amenable number.

313271669 is a deficient number, since it is larger than the sum of its proper divisors (1).

313271669 is an equidigital number, since it uses as much as digits as its factorization.

313271669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 313271669 is about 17699.4821675664. The cubic root of 313271669 is about 679.1625135272.

The spelling of 313271669 in words is "three hundred thirteen million, two hundred seventy-one thousand, six hundred sixty-nine".