319912 has 8 divisors (see below), whose sum is σ = 599850. Its totient is φ = 159952.

The previous prime is 319901. The next prime is 319919. The reversal of 319912 is 219913.

It can be written as a sum of positive squares in only one way, i.e., 306916 + 12996 = 554^2 + 114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (319919) by changing a digit.

319912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19987 + ... + 20002.

2³¹⁹⁹¹² is an apocalyptic number.

It is an amenable number.

319912 is a deficient number, since it is larger than the sum of its proper divisors (279938).

319912 is a wasteful number, since it uses less digits than its factorization.

319912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39995 (or 39991 counting only the distinct ones).

The product of its digits is 486, while the sum is 25.

The square root of 319912 is about 565.6076378551. The cubic root of 319912 is about 68.3927673804.

Subtracting from 319912 its reverse (219913), we obtain a palindrome (99999).

The spelling of 319912 in words is "three hundred nineteen thousand, nine hundred twelve".