19119 has 4 divisors (see below), whose sum is σ = 25496. Its totient is φ = 12744.

The previous prime is 19087. The next prime is 19121. The reversal of 19119 is 91191.

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

It is not a de Polignac number, because 19119 - 2⁵ = 19087 is a prime.

It is a super-2 number, since 2×19119² = 731072322, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

19119 is a lucky number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 19095 and 19104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19139) 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, 3184 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (6374).

2¹⁹¹¹⁹ is an apocalyptic number.

19119 is a deficient number, since it is larger than the sum of its proper divisors (6377).

19119 is an equidigital number, since it uses as much as digits as its factorization.

19119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376.

The product of its digits is 81, while the sum is 21.

The square root of 19119 is about 138.2714721119. The cubic root of 19119 is about 26.7396093222.

It can be divided in two parts, 191 and 19, that added together give a triangular number (210 = T₂₀).

The spelling of 19119 in words is "nineteen thousand, one hundred nineteen".