313169393 has 8 divisors (see below), whose sum is σ = 331885512. Its totient is φ = 294486016.

The previous prime is 313169377. The next prime is 313169407. The reversal of 313169393 is 393961313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 74528689 + 238640704 = 8633^2 + 15448^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313169393 - 2⁴ = 313169377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313169093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13121 + ... + 28257.

It is an arithmetic number, because the mean of its divisors is an integer number (41485689).

Almost surely, 2^313169393 is an apocalyptic number.

It is an amenable number.

313169393 is a deficient number, since it is larger than the sum of its proper divisors (18716119).

313169393 is a wasteful number, since it uses less digits than its factorization.

313169393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16371.

The product of its digits is 39366, while the sum is 38.

The square root of 313169393 is about 17696.5926946404. The cubic root of 313169393 is about 679.0885951652.

The spelling of 313169393 in words is "three hundred thirteen million, one hundred sixty-nine thousand, three hundred ninety-three".