2104189 has 4 divisors (see below), whose sum is σ = 2107456. Its totient is φ = 2100924.

The previous prime is 2104181. The next prime is 2104213. The reversal of 2104189 is 9814012.

It is a happy number.

2104189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2104189 - 2³ = 2104181 is a prime.

It is a super-2 number, since 2×2104189² = 8855222695442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309 + ... + 2074.

It is an arithmetic number, because the mean of its divisors is an integer number (526864).

2^2104189 is an apocalyptic number.

It is an amenable number.

2104189 is a deficient number, since it is larger than the sum of its proper divisors (3267).

2104189 is an equidigital number, since it uses as much as digits as its factorization.

2104189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2104189 is about 1450.5822968725. The cubic root of 2104189 is about 128.1430082957.

The spelling of 2104189 in words is "two million, one hundred four thousand, one hundred eighty-nine".