2189109 has 8 divisors (see below), whose sum is σ = 3143392. Its totient is φ = 1347120.

The previous prime is 2189101. The next prime is 2189147. The reversal of 2189109 is 9019812.

2189109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2189109 - 2³ = 2189101 is a prime.

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 (2189101) 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 7 ways as a sum of consecutive naturals, for example, 28027 + ... + 28104.

It is an arithmetic number, because the mean of its divisors is an integer number (392924).

2^2189109 is an apocalyptic number.

It is an amenable number.

2189109 is a deficient number, since it is larger than the sum of its proper divisors (954283).

2189109 is a wasteful number, since it uses less digits than its factorization.

2189109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56147.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 2189109 is about 1479.5637870670. The cubic root of 2189109 is about 129.8441722622.

The spelling of 2189109 in words is "two million, one hundred eighty-nine thousand, one hundred nine".