18133854 has 8 divisors (see below), whose sum is σ = 36267720. Its totient is φ = 6044616.

The previous prime is 18133813. The next prime is 18133877. The reversal of 18133854 is 45833181.

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

18133854 is an admirable number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511149 + ... + 1511160.

It is an arithmetic number, because the mean of its divisors is an integer number (4533465).

Almost surely, 2^18133854 is an apocalyptic number.

18133854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18133854 is a wasteful number, since it uses less digits than its factorization.

18133854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022314.

The product of its digits is 11520, while the sum is 33.

The square root of 18133854 is about 4258.3863140866. The cubic root of 18133854 is about 262.7221593211.

The spelling of 18133854 in words is "eighteen million, one hundred thirty-three thousand, eight hundred fifty-four".