2109459 has 16 divisors (see below), whose sum is σ = 3104640. Its totient is φ = 1263360.

The previous prime is 2109449. The next prime is 2109461. The reversal of 2109459 is 9549012.

It is a happy number.

It is not a de Polignac number, because 2109459 - 2⁸ = 2109203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2109449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2872 + ... + 3530.

It is an arithmetic number, because the mean of its divisors is an integer number (194040).

2^2109459 is an apocalyptic number.

2109459 is a deficient number, since it is larger than the sum of its proper divisors (995181).

2109459 is a wasteful number, since it uses less digits than its factorization.

2109459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2109459 is about 1452.3976728155. The cubic root of 2109459 is about 128.2498983542.

It can be divided in two parts, 210 and 9459, that added together give a palindrome (9669).

The spelling of 2109459 in words is "two million, one hundred nine thousand, four hundred fifty-nine".