2115589 has 4 divisors (see below), whose sum is σ = 2417824. Its totient is φ = 1813356.

The previous prime is 2115571. The next prime is 2115629. The reversal of 2115589 is 9855112.

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 2115589 - 2⁷ = 2115461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2115589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151107 + ... + 151120.

It is an arithmetic number, because the mean of its divisors is an integer number (604456).

2^2115589 is an apocalyptic number.

It is an amenable number.

2115589 is a deficient number, since it is larger than the sum of its proper divisors (302235).

2115589 is an equidigital number, since it uses as much as digits as its factorization.

2115589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302234.

The product of its digits is 3600, while the sum is 31.

The square root of 2115589 is about 1454.5064454996. The cubic root of 2115589 is about 128.3740078338.

It can be divided in two parts, 2115 and 589, that added together give a square (2704 = 52²).

The spelling of 2115589 in words is "two million, one hundred fifteen thousand, five hundred eighty-nine".