18500119 has 16 divisors (see below), whose sum is σ = 21337344. Its totient is φ = 15875200.

The previous prime is 18500117. The next prime is 18500161. The reversal of 18500119 is 91100581.

It is not a de Polignac number, because 18500119 - 2¹ = 18500117 is a prime.

It is a super-2 number, since 2×18500119² = 684508806028322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18500093 and 18500102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18500113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20559 + ... + 21439.

It is an arithmetic number, because the mean of its divisors is an integer number (1333584).

Almost surely, 2^18500119 is an apocalyptic number.

18500119 is a deficient number, since it is larger than the sum of its proper divisors (2837225).

18500119 is a wasteful number, since it uses less digits than its factorization.

18500119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 18500119 is about 4301.1764669681. The cubic root of 18500119 is about 264.4791907138.

The spelling of 18500119 in words is "eighteen million, five hundred thousand, one hundred nineteen".