2881131 has 12 divisors (see below), whose sum is σ = 4223016. Its totient is φ = 1745920.

The previous prime is 2881127. The next prime is 2881139. The reversal of 2881131 is 1311882.

It is not a de Polignac number, because 2881131 - 2² = 2881127 is a prime.

It is a super-2 number, since 2×2881131² = 16601831678322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2881139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3606 + ... + 4331.

It is an arithmetic number, because the mean of its divisors is an integer number (351918).

2^2881131 is an apocalyptic number.

2881131 is a deficient number, since it is larger than the sum of its proper divisors (1341885).

2881131 is a wasteful number, since it uses less digits than its factorization.

2881131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962 (or 7951 counting only the distinct ones).

The product of its digits is 384, while the sum is 24.

The square root of 2881131 is about 1697.3894662098. The cubic root of 2881131 is about 142.2943540307.

The spelling of 2881131 in words is "two million, eight hundred eighty-one thousand, one hundred thirty-one".