313431169 has 4 divisors (see below), whose sum is σ = 315006400. Its totient is φ = 311855940.

The previous prime is 313431161. The next prime is 313431199. The reversal of 313431169 is 961134313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961134313 = 71 ⋅13537103.

It is a cyclic number.

It is not a de Polignac number, because 313431169 - 2³ = 313431161 is a prime.

It is a super-2 number, since 2×313431169² = 196478195401413122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313431169.

It is not an unprimeable number, because it can be changed into a prime (313431161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787317 + ... + 787714.

It is an arithmetic number, because the mean of its divisors is an integer number (78751600).

Almost surely, 2^313431169 is an apocalyptic number.

It is an amenable number.

313431169 is a deficient number, since it is larger than the sum of its proper divisors (1575231).

313431169 is a wasteful number, since it uses less digits than its factorization.

313431169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575230.

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

The square root of 313431169 is about 17703.9873757298. The cubic root of 313431169 is about 679.2777575281.

It can be divided in two parts, 313431 and 169, that added together give a square (313600 = 560²).

The spelling of 313431169 in words is "three hundred thirteen million, four hundred thirty-one thousand, one hundred sixty-nine".