2509109 has 8 divisors (see below), whose sum is σ = 2680320. Its totient is φ = 2343600.

The previous prime is 2509103. The next prime is 2509123. The reversal of 2509109 is 9019052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2509109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497 + ... + 2294.

It is an arithmetic number, because the mean of its divisors is an integer number (335040).

2^2509109 is an apocalyptic number.

2509109 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2509109 is a deficient number, since it is larger than the sum of its proper divisors (171211).

2509109 is a wasteful number, since it uses less digits than its factorization.

2509109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 2509109 is about 1584.0167297096. The cubic root of 2509109 is about 135.8855185671.

The spelling of 2509109 in words is "two million, five hundred nine thousand, one hundred nine".