6109 has 4 divisors (see below), whose sum is σ = 6300. Its totient is φ = 5920.

The previous prime is 6101. The next prime is 6113. The reversal of 6109 is 9016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 484 + 5625 = 22^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 6109 - 2³ = 6101 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 6092 and 6101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6101) 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, 34 + ... + 115.

It is an arithmetic number, because the mean of its divisors is an integer number (1575).

2⁶¹⁰⁹ is an apocalyptic number.

It is an amenable number.

6109 is a deficient number, since it is larger than the sum of its proper divisors (191).

6109 is a wasteful number, since it uses less digits than its factorization.

6109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 6109 is about 78.1600921187. The cubic root of 6109 is about 18.2805829864.

The spelling of 6109 in words is "six thousand, one hundred nine".