3139873 has 8 divisors (see below), whose sum is σ = 3438720. Its totient is φ = 2843280.

The previous prime is 3139867. The next prime is 3139889. The reversal of 3139873 is 3789313.

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

It is not a de Polignac number, because 3139873 - 2⁵ = 3139841 is a prime.

It is a super-2 number, since 2×3139873² = 19717604912258, which contains 22 as substring.

It is a Duffinian number.

3139873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3139813) 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, 4008 + ... + 4726.

It is an arithmetic number, because the mean of its divisors is an integer number (429840).

Almost surely, 2^3139873 is an apocalyptic number.

It is an amenable number.

3139873 is a deficient number, since it is larger than the sum of its proper divisors (298847).

3139873 is a wasteful number, since it uses less digits than its factorization.

3139873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127.

The product of its digits is 13608, while the sum is 34.

The square root of 3139873 is about 1771.9686791814. The cubic root of 3139873 is about 146.4324608015.

It can be divided in two parts, 3 and 139873, that added together give a square (139876 = 374²).

The spelling of 3139873 in words is "three million, one hundred thirty-nine thousand, eight hundred seventy-three".