3128315939 has 8 divisors (see below), whose sum is σ = 3624194400. Its totient is φ = 2644681536.

The previous prime is 3128315893. The next prime is 3128315959. The reversal of 3128315939 is 9395138213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3128315939 - 2²⁴ = 3111538723 is a prime.

It is a super-2 number, since 2×3128315939² = 19572721228402903442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3128315939.

It is not an unprimeable number, because it can be changed into a prime (3128315959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3060464 + ... + 3061485.

It is an arithmetic number, because the mean of its divisors is an integer number (453024300).

Almost surely, 2^3128315939 is an apocalyptic number.

3128315939 is a deficient number, since it is larger than the sum of its proper divisors (495878461).

3128315939 is an equidigital number, since it uses as much as digits as its factorization.

3128315939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6122029.

The product of its digits is 174960, while the sum is 44.

The square root of 3128315939 is about 55931.3502340146. The cubic root of 3128315939 is about 1462.5257990822.

The spelling of 3128315939 in words is "three billion, one hundred twenty-eight million, three hundred fifteen thousand, nine hundred thirty-nine".