2881139 has 2 divisors, whose sum is σ = 2881140. Its totient is φ = 2881138.

The previous prime is 2881127. The next prime is 2881159. The reversal of 2881139 is 9311882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2881139 - 2⁸ = 2880883 is a prime.

It is not a weakly prime, because it can be changed into another prime (2881159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440569 + 1440570.

It is an arithmetic number, because the mean of its divisors is an integer number (1440570).

2^2881139 is an apocalyptic number.

2881139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2881139 is an equidigital number, since it uses as much as digits as its factorization.

2881139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 32.

The square root of 2881139 is about 1697.3918227681. The cubic root of 2881139 is about 142.2944857329.

The spelling of 2881139 in words is "two million, eight hundred eighty-one thousand, one hundred thirty-nine".