319494189 has 32 divisors (see below), whose sum is σ = 508446720. Its totient is φ = 174589632.

The previous prime is 319494179. The next prime is 319494193. The reversal of 319494189 is 981494913.

It is not a de Polignac number, because 319494189 - 2¹⁶ = 319428653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319494169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62712 + ... + 67614.

It is an arithmetic number, because the mean of its divisors is an integer number (15888960).

Almost surely, 2^319494189 is an apocalyptic number.

It is an amenable number.

319494189 is a deficient number, since it is larger than the sum of its proper divisors (188952531).

319494189 is a wasteful number, since it uses less digits than its factorization.

319494189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049.

The product of its digits is 279936, while the sum is 48.

The square root of 319494189 is about 17874.4003815513. The cubic root of 319494189 is about 683.6298033535.

The spelling of 319494189 in words is "three hundred nineteen million, four hundred ninety-four thousand, one hundred eighty-nine".