2109595 has 12 divisors (see below), whose sum is σ = 2600064. Its totient is φ = 1643120.

The previous prime is 2109593. The next prime is 2109607. The reversal of 2109595 is 5959012.

It is not a de Polignac number, because 2109595 - 2¹ = 2109593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2109593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10950 + ... + 11140.

It is an arithmetic number, because the mean of its divisors is an integer number (216672).

2^2109595 is an apocalyptic number.

2109595 is a deficient number, since it is larger than the sum of its proper divisors (490469).

2109595 is an equidigital number, since it uses as much as digits as its factorization.

2109595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 2109595 is about 1452.4444911941. Note that the first 4 decimals coincide. The cubic root of 2109595 is about 128.2526544497.

It can be divided in two parts, 2109 and 595, that added together give a square (2704 = 52²).

The spelling of 2109595 in words is "two million, one hundred nine thousand, five hundred ninety-five".