313169431 has 2 divisors, whose sum is σ = 313169432. Its totient is φ = 313169430.

The previous prime is 313169407. The next prime is 313169459. The reversal of 313169431 is 134961313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313169431 - 2²⁵ = 279614999 is a prime.

It is a super-2 number, since 2×313169431² = 196150185025727522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313169393 and 313169402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313167431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156584715 + 156584716.

It is an arithmetic number, because the mean of its divisors is an integer number (156584716).

Almost surely, 2^313169431 is an apocalyptic number.

313169431 is a deficient number, since it is larger than the sum of its proper divisors (1).

313169431 is an equidigital number, since it uses as much as digits as its factorization.

313169431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 31.

The square root of 313169431 is about 17696.5937682934. The cubic root of 313169431 is about 679.0886226321.

It can be divided in two parts, 313169 and 431, that added together give a square (313600 = 560²).

The spelling of 313169431 in words is "three hundred thirteen million, one hundred sixty-nine thousand, four hundred thirty-one".