319889156 has 12 divisors (see below), whose sum is σ = 560239680. Its totient is φ = 159820680.

The previous prime is 319889147. The next prime is 319889159. The reversal of 319889156 is 651988913.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (319889159) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 25040 + ... + 35591.

It is an arithmetic number, because the mean of its divisors is an integer number (46686640).

Almost surely, 2^319889156 is an apocalyptic number.

It is an amenable number.

319889156 is a deficient number, since it is larger than the sum of its proper divisors (240350524).

319889156 is a wasteful number, since it uses less digits than its factorization.

319889156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61954 (or 61952 counting only the distinct ones).

The product of its digits is 466560, while the sum is 50.

The square root of 319889156 is about 17885.4453676726. The cubic root of 319889156 is about 683.9113943111.

The spelling of 319889156 in words is "three hundred nineteen million, eight hundred eighty-nine thousand, one hundred fifty-six".