19019 has 16 divisors (see below), whose sum is σ = 26880. Its totient is φ = 12960.

The previous prime is 19013. The next prime is 19031. The reversal of 19019 is 91091.

19019 = 1² + 2² + ... + 38².

19019 is nontrivially palindromic in base 12.

It is a cyclic number.

It is not a de Polignac number, because 19019 - 2¹² = 14923 is a prime.

It is a super-2 number, since 2×19019² = 723444722, which contains 22 as substring.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (19013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 992 + ... + 1010.

It is an arithmetic number, because the mean of its divisors is an integer number (1680).

2¹⁹⁰¹⁹ is an apocalyptic number.

19019 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19019 is a deficient number, since it is larger than the sum of its proper divisors (7861).

19019 is a wasteful number, since it uses less digits than its factorization.

19019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 19019 is about 137.9093905432. The cubic root of 19019 is about 26.6929081961.

The spelling of 19019 in words is "nineteen thousand, nineteen".