3191139 has 24 divisors (see below), whose sum is σ = 5414240. Its totient is φ = 1774224.

The previous prime is 3191137. The next prime is 3191161. The reversal of 3191139 is 9311913.

It is not a de Polignac number, because 3191139 - 2¹ = 3191137 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3191137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86229 + ... + 86265.

Almost surely, 2^3191139 is an apocalyptic number.

3191139 is a deficient number, since it is larger than the sum of its proper divisors (2223101).

3191139 is an frugal number, since it uses more digits than its factorization.

3191139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 47 counting only the distinct ones).

The product of its digits is 729, while the sum is 27.

The square root of 3191139 is about 1786.3759402769. The cubic root of 3191139 is about 147.2251166922.

The spelling of 3191139 in words is "three million, one hundred ninety-one thousand, one hundred thirty-nine".