2289109 has 4 divisors (see below), whose sum is σ = 2310220. Its totient is φ = 2268000.

The previous prime is 2289083. The next prime is 2289127. The reversal of 2289109 is 9019822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1030225 + 1258884 = 1015^2 + 1122^2 .

It is a cyclic number.

It is not a de Polignac number, because 2289109 - 2⁹ = 2288597 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 (2289149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10392 + ... + 10609.

It is an arithmetic number, because the mean of its divisors is an integer number (577555).

2^2289109 is an apocalyptic number.

It is an amenable number.

2289109 is a deficient number, since it is larger than the sum of its proper divisors (21111).

2289109 is a wasteful number, since it uses less digits than its factorization.

2289109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21110.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2289109 is about 1512.9801717141. The cubic root of 2289109 is about 131.7919319186.

The spelling of 2289109 in words is "two million, two hundred eighty-nine thousand, one hundred nine".