6109309 has 4 divisors (see below), whose sum is σ = 6149920. Its totient is φ = 6068700.

The previous prime is 6109303. The next prime is 6109321. The reversal of 6109309 is 9039016.

It is a happy number.

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 6109309 - 2⁵ = 6109277 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 (6109303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20079 + ... + 20380.

It is an arithmetic number, because the mean of its divisors is an integer number (1537480).

Almost surely, 2^6109309 is an apocalyptic number.

It is an amenable number.

6109309 is a deficient number, since it is larger than the sum of its proper divisors (40611).

6109309 is a wasteful number, since it uses less digits than its factorization.

6109309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40610.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 6109309 is about 2471.7016405707. The cubic root of 6109309 is about 182.8089119855.

The spelling of 6109309 in words is "six million, one hundred nine thousand, three hundred nine".