18119 has 2 divisors, whose sum is σ = 18120. Its totient is φ = 18118.

The previous prime is 18097. The next prime is 18121. The reversal of 18119 is 91181.

18119 is nontrivially palindromic in base 9.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18119 - 2⁸ = 17863 is a prime.

It is a super-2 number, since 2×18119² = 656596322, which contains 22 as substring.

Together with 18121, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 18119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9059 + 9060.

It is an arithmetic number, because the mean of its divisors is an integer number (9060).

2¹⁸¹¹⁹ is an apocalyptic number.

18119 is a deficient number, since it is larger than the sum of its proper divisors (1).

18119 is an equidigital number, since it uses as much as digits as its factorization.

18119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 20.

The square root of 18119 is about 134.6068348933. The cubic root of 18119 is about 26.2650405113.

The spelling of 18119 in words is "eighteen thousand, one hundred nineteen".