2881109 has 32 divisors (see below), whose sum is σ = 3981312. Its totient is φ = 2016000.

The previous prime is 2881097. The next prime is 2881117. The reversal of 2881109 is 9011882.

It is not a de Polignac number, because 2881109 - 2¹² = 2877013 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 40544 + ... + 40614.

It is an arithmetic number, because the mean of its divisors is an integer number (124416).

2^2881109 is an apocalyptic number.

It is an amenable number.

2881109 is a deficient number, since it is larger than the sum of its proper divisors (1100203).

2881109 is a wasteful number, since it uses less digits than its factorization.

2881109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 2881109 is about 1697.3829856576. The cubic root of 2881109 is about 142.2939918484.

The spelling of 2881109 in words is "two million, eight hundred eighty-one thousand, one hundred nine".