319514989 has 4 divisors (see below), whose sum is σ = 319715424. Its totient is φ = 319314556.

The previous prime is 319514969. The next prime is 319515013. The reversal of 319514989 is 989415913.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 989415913 = 61 ⋅16219933.

It is a cyclic number.

It is not a de Polignac number, because 319514989 - 2¹³ = 319506797 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319514969) 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, 97807 + ... + 101020.

It is an arithmetic number, because the mean of its divisors is an integer number (79928856).

Almost surely, 2^319514989 is an apocalyptic number.

It is an amenable number.

319514989 is a deficient number, since it is larger than the sum of its proper divisors (200435).

319514989 is a wasteful number, since it uses less digits than its factorization.

319514989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200434.

The product of its digits is 349920, while the sum is 49.

The square root of 319514989 is about 17874.9822097814. The cubic root of 319514989 is about 683.6446384604.

The spelling of 319514989 in words is "three hundred nineteen million, five hundred fourteen thousand, nine hundred eighty-nine".