2520109 has 4 divisors (see below), whose sum is σ = 2526016. Its totient is φ = 2514204.

The previous prime is 2520079. The next prime is 2520121. The reversal of 2520109 is 9010252.

2520109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2520109 - 2⁷ = 2519981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520139) 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 3 ways as a sum of consecutive naturals, for example, 2259 + ... + 3184.

It is an arithmetic number, because the mean of its divisors is an integer number (631504).

2^2520109 is an apocalyptic number.

It is an amenable number.

2520109 is a deficient number, since it is larger than the sum of its proper divisors (5907).

2520109 is an equidigital number, since it uses as much as digits as its factorization.

2520109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2520109 is about 1587.4851180405. The cubic root of 2520109 is about 136.0838043173.

The spelling of 2520109 in words is "two million, five hundred twenty thousand, one hundred nine".