18811119 has 8 divisors (see below), whose sum is σ = 25492912. Its totient is φ = 12335040.

The previous prime is 18811103. The next prime is 18811123. The reversal of 18811119 is 91111881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18811119 - 2⁴ = 18811103 is a prime.

It is a super-2 number, since 2×18811119² = 707716396064322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18810119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51214 + ... + 51579.

It is an arithmetic number, because the mean of its divisors is an integer number (3186614).

Almost surely, 2^18811119 is an apocalyptic number.

18811119 is a deficient number, since it is larger than the sum of its proper divisors (6681793).

18811119 is a wasteful number, since it uses less digits than its factorization.

18811119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102857.

The product of its digits is 576, while the sum is 30.

The square root of 18811119 is about 4337.1786912692. The cubic root of 18811119 is about 265.9529897891.

The spelling of 18811119 in words is "eighteen million, eight hundred eleven thousand, one hundred nineteen".