18112254 has 8 divisors (see below), whose sum is σ = 36224520. Its totient is φ = 6037416.

The previous prime is 18112253. The next prime is 18112279. The reversal of 18112254 is 45221181.

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

18112254 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18112253) 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, 1509349 + ... + 1509360.

It is an arithmetic number, because the mean of its divisors is an integer number (4528065).

Almost surely, 2^18112254 is an apocalyptic number.

18112254 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.

18112254 is a wasteful number, since it uses less digits than its factorization.

18112254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018714.

The product of its digits is 640, while the sum is 24.

The square root of 18112254 is about 4255.8493864327. The cubic root of 18112254 is about 262.6178047201.

The spelling of 18112254 in words is "eighteen million, one hundred twelve thousand, two hundred fifty-four".