18107 has 4 divisors (see below), whose sum is σ = 19080. Its totient is φ = 17136.

The previous prime is 18097. The next prime is 18119. The reversal of 18107 is 70181.

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

It is a cyclic number.

It is not a de Polignac number, because 18107 - 2^{6} = 18043 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number *n* which divided by its sum of digits gives 18107.

It is not an unprimeable number, because it can be changed into a prime (18127) 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, 458 + ... + 495.

It is an arithmetic number, because the mean of its divisors is an integer number (4770).

2^{18107} is an apocalyptic number.

18107 is a deficient number, since it is larger than the sum of its proper divisors (973).

18107 is an equidigital number, since it uses as much as digits as its factorization.

18107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 18107 is about 134.5622532511. The cubic root of 18107 is about 26.2592408886.

Adding to 18107 its reverse (70181), we get a palindrome (88288).

It can be divided in two parts, 18 and 107, that added together give a cube (125 = 5^{3}).

The spelling of 18107 in words is "eighteen thousand, one hundred seven".

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