319142 has 4 divisors (see below), whose sum is σ = 478716. Its totient is φ = 159570.

The previous prime is 319133. The next prime is 319147. The reversal of 319142 is 241913.

319142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 319142.

It is not an unprimeable number, because it can be changed into a prime (319147) by changing a digit.

319142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79784 + ... + 79787.

It is an arithmetic number, because the mean of its divisors is an integer number (119679).

2³¹⁹¹⁴² is an apocalyptic number.

319142 is a deficient number, since it is larger than the sum of its proper divisors (159574).

319142 is a wasteful number, since it uses less digits than its factorization.

319142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159573.

The product of its digits is 216, while the sum is 20.

The square root of 319142 is about 564.9265438975. The cubic root of 319142 is about 68.3378515090.

The spelling of 319142 in words is "three hundred nineteen thousand, one hundred forty-two".