2109159 has 20 divisors (see below), whose sum is σ = 3394776. Its totient is φ = 1297296.

The previous prime is 2109127. The next prime is 2109161. The reversal of 2109159 is 9519012.

It is a happy number.

2109159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2109159 - 2⁵ = 2109127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

2109159 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109109) 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 19 ways as a sum of consecutive naturals, for example, 52 + ... + 2054.

2^2109159 is an apocalyptic number.

2109159 is a deficient number, since it is larger than the sum of its proper divisors (1285617).

2109159 is a wasteful number, since it uses less digits than its factorization.

2109159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 2109159 is about 1452.2943916438. The cubic root of 2109159 is about 128.2438183129.

The spelling of 2109159 in words is "two million, one hundred nine thousand, one hundred fifty-nine".