2185559 has 4 divisors (see below), whose sum is σ = 2205720. Its totient is φ = 2165400.

The previous prime is 2185541. The next prime is 2185567. The reversal of 2185559 is 9555812.

2185559 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.

It is a cyclic number.

It is not a de Polignac number, because 2185559 - 2¹² = 2181463 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 (2182559) 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, 9917 + ... + 10134.

It is an arithmetic number, because the mean of its divisors is an integer number (551430).

2^2185559 is an apocalyptic number.

2185559 is a deficient number, since it is larger than the sum of its proper divisors (20161).

2185559 is a wasteful number, since it uses less digits than its factorization.

2185559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20160.

The product of its digits is 18000, while the sum is 35.

The square root of 2185559 is about 1478.3636223879. The cubic root of 2185559 is about 129.7739463996.

It can be divided in two parts, 2185 and 559, that added together give a cube (2744 = 14³).

The spelling of 2185559 in words is "two million, one hundred eighty-five thousand, five hundred fifty-nine".