2108559 has 4 divisors (see below), whose sum is σ = 2811416. Its totient is φ = 1405704.

The previous prime is 2108551. The next prime is 2108597. The reversal of 2108559 is 9558012.

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

It is not a de Polignac number, because 2108559 - 2³ = 2108551 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351424 + ... + 351429.

It is an arithmetic number, because the mean of its divisors is an integer number (702854).

2^2108559 is an apocalyptic number.

2108559 is a deficient number, since it is larger than the sum of its proper divisors (702857).

2108559 is an equidigital number, since it uses as much as digits as its factorization.

2108559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702856.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 2108559 is about 1452.0878072624. The cubic root of 2108559 is about 128.2316565005.

The spelling of 2108559 in words is "two million, one hundred eight thousand, five hundred fifty-nine".