18354119 has 4 divisors (see below), whose sum is σ = 20976144. Its totient is φ = 15732096.

The previous prime is 18354103. The next prime is 18354131. The reversal of 18354119 is 91145381.

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

It is a cyclic number.

It is not a de Polignac number, because 18354119 - 2⁴ = 18354103 is a prime.

It is a super-2 number, since 2×18354119² = 673747368532322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18354179) 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, 1311002 + ... + 1311015.

It is an arithmetic number, because the mean of its divisors is an integer number (5244036).

Almost surely, 2^18354119 is an apocalyptic number.

18354119 is a deficient number, since it is larger than the sum of its proper divisors (2622025).

18354119 is an equidigital number, since it uses as much as digits as its factorization.

18354119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622024.

The product of its digits is 4320, while the sum is 32.

The square root of 18354119 is about 4284.1707482312. The cubic root of 18354119 is about 263.7816098320.

The spelling of 18354119 in words is "eighteen million, three hundred fifty-four thousand, one hundred nineteen".