319880085 has 64 divisors (see below), whose sum is σ = 605184000. Its totient is φ = 144196416.

The previous prime is 319880081. The next prime is 319880131. The reversal of 319880085 is 580088913.

It is not a de Polignac number, because 319880085 - 2² = 319880081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319880081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 406062 + ... + 406848.

It is an arithmetic number, because the mean of its divisors is an integer number (9456000).

Almost surely, 2^319880085 is an apocalyptic number.

319880085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

319880085 is a deficient number, since it is larger than the sum of its proper divisors (285303915).

319880085 is an equidigital number, since it uses as much as digits as its factorization.

319880085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 319880085 is about 17885.1917797937. The cubic root of 319880085 is about 683.9049297606.

The spelling of 319880085 in words is "three hundred nineteen million, eight hundred eighty thousand, eighty-five".