2881189 has 4 divisors (see below), whose sum is σ = 2908224. Its totient is φ = 2854156.

The previous prime is 2881183. The next prime is 2881243. The reversal of 2881189 is 9811882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2881189 - 2³ = 2881181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13357 + ... + 13570.

It is an arithmetic number, because the mean of its divisors is an integer number (727056).

2^2881189 is an apocalyptic number.

It is an amenable number.

2881189 is a deficient number, since it is larger than the sum of its proper divisors (27035).

2881189 is a wasteful number, since it uses less digits than its factorization.

2881189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27034.

The product of its digits is 9216, while the sum is 37.

The square root of 2881189 is about 1697.4065511833. The cubic root of 2881189 is about 142.2953088661.

It can be divided in two parts, 28811 and 89, that added together give a square (28900 = 170²).

The spelling of 2881189 in words is "two million, eight hundred eighty-one thousand, one hundred eighty-nine".