18112285 has 8 divisors (see below), whose sum is σ = 21816576. Its totient is φ = 14435280.

The previous prime is 18112279. The next prime is 18112307. The reversal of 18112285 is 58221181.

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

It is not a de Polignac number, because 18112285 - 2⁵ = 18112253 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 5329 + ... + 8038.

It is an arithmetic number, because the mean of its divisors is an integer number (2727072).

Almost surely, 2^18112285 is an apocalyptic number.

It is an amenable number.

18112285 is a deficient number, since it is larger than the sum of its proper divisors (3704291).

18112285 is a wasteful number, since it uses less digits than its factorization.

18112285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13643.

The product of its digits is 1280, while the sum is 28.

The square root of 18112285 is about 4255.8530284774. The cubic root of 18112285 is about 262.6179545477.

It can be divided in two parts, 1811 and 2285, that added together give a 12-th power (4096 = 2¹²).

The spelling of 18112285 in words is "eighteen million, one hundred twelve thousand, two hundred eighty-five".