319312 has 20 divisors (see below), whose sum is σ = 707296. Its totient is φ = 136800.

The previous prime is 319289. The next prime is 319313. The reversal of 319312 is 213913.

It is a self number, because there is not a number n which added to its sum of digits gives 319312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319313) 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, 1314 + ... + 1537.

2³¹⁹³¹² is an apocalyptic number.

It is an amenable number.

319312 is an abundant number, since it is smaller than the sum of its proper divisors (387984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

319312 is a wasteful number, since it uses less digits than its factorization.

319312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866 (or 2860 counting only the distinct ones).

The product of its digits is 162, while the sum is 19.

The square root of 319312 is about 565.0769859055. The cubic root of 319312 is about 68.3499833841.

The spelling of 319312 in words is "three hundred nineteen thousand, three hundred twelve".