6018109 has 4 divisors (see below), whose sum is σ = 6225660. Its totient is φ = 5810560.

The previous prime is 6018107. The next prime is 6018127. The reversal of 6018109 is 9018106.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9018106 = 2 ⋅4509053.

It can be written as a sum of positive squares in 2 ways, for example, as 3229209 + 2788900 = 1797^2 + 1670^2 .

It is a cyclic number.

It is not a de Polignac number, because 6018109 - 2¹ = 6018107 is a prime.

6018109 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6018107) 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, 103732 + ... + 103789.

It is an arithmetic number, because the mean of its divisors is an integer number (1556415).

Almost surely, 2^6018109 is an apocalyptic number.

It is an amenable number.

6018109 is a deficient number, since it is larger than the sum of its proper divisors (207551).

6018109 is a wasteful number, since it uses less digits than its factorization.

6018109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207550.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 6018109 is about 2453.1834419790. The cubic root of 6018109 is about 181.8946880983.

The spelling of 6018109 in words is "six million, eighteen thousand, one hundred nine".