18201119 has 8 divisors (see below), whose sum is σ = 19305312. Its totient is φ = 17123040.

The previous prime is 18201103. The next prime is 18201121. The reversal of 18201119 is 91110281.

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

It is not a de Polignac number, because 18201119 - 2⁴ = 18201103 is a prime.

It is a super-2 number, since 2×18201119² = 662561465704322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18201094 and 18201103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18201719) 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, 5084 + ... + 7889.

It is an arithmetic number, because the mean of its divisors is an integer number (2413164).

Almost surely, 2^18201119 is an apocalyptic number.

18201119 is a deficient number, since it is larger than the sum of its proper divisors (1104193).

18201119 is a wasteful number, since it uses less digits than its factorization.

18201119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13057.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 18201119 is about 4266.2769483474. The cubic root of 18201119 is about 263.0466022176.

The spelling of 18201119 in words is "eighteen million, two hundred one thousand, one hundred nineteen".