3109009 has 4 divisors (see below), whose sum is σ = 3112560. Its totient is φ = 3105460.

The previous prime is 3108991. The next prime is 3109031. The reversal of 3109009 is 9009013.

3109009 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3109009 - 2¹⁷ = 2977937 is a prime.

It is a Duffinian number.

3109009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3109069) 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, 582 + ... + 2560.

It is an arithmetic number, because the mean of its divisors is an integer number (778140).

Almost surely, 2^3109009 is an apocalyptic number.

It is an amenable number.

3109009 is a deficient number, since it is larger than the sum of its proper divisors (3551).

3109009 is a wasteful number, since it uses less digits than its factorization.

3109009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 3109009 is about 1763.2382141957. The cubic root of 3109009 is about 145.9510845078.

The spelling of 3109009 in words is "three million, one hundred nine thousand, nine".