18150144 has 36 divisors (see below), whose sum is σ = 48307896. Its totient is φ = 6049792.

The previous prime is 18150109. The next prime is 18150161. The reversal of 18150144 is 44105181.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11049 + ... + 12584.

It is an arithmetic number, because the mean of its divisors is an integer number (1341886).

Almost surely, 2^18150144 is an apocalyptic number.

It is an amenable number.

18150144 is an abundant number, since it is smaller than the sum of its proper divisors (30157752).

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

18150144 is an equidigital number, since it uses as much as digits as its factorization.

18150144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23652 (or 23638 counting only the distinct ones).

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

The square root of 18150144 is about 4260.2985810856. The cubic root of 18150144 is about 262.8008052815.

The spelling of 18150144 in words is "eighteen million, one hundred fifty thousand, one hundred forty-four".