18045112 has 8 divisors (see below), whose sum is σ = 33834600. Its totient is φ = 9022552.

The previous prime is 18045067. The next prime is 18045173. The reversal of 18045112 is 21154081.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127812 + ... + 1127827.

It is an arithmetic number, because the mean of its divisors is an integer number (4229325).

Almost surely, 2^18045112 is an apocalyptic number.

It is an amenable number.

18045112 is a deficient number, since it is larger than the sum of its proper divisors (15789488).

18045112 is a wasteful number, since it uses less digits than its factorization.

18045112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255645 (or 2255641 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 18045112 is about 4247.9538603897. The cubic root of 18045112 is about 262.2928954495.

Adding to 18045112 its reverse (21154081), we get a palindrome (39199193).

The spelling of 18045112 in words is "eighteen million, forty-five thousand, one hundred twelve".