18150872 has 16 divisors (see below), whose sum is σ = 35131200. Its totient is φ = 8782560.

The previous prime is 18150863. The next prime is 18150877. The reversal of 18150872 is 27805181.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18150877) by changing a digit.

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, 36347 + ... + 36842.

It is an arithmetic number, because the mean of its divisors is an integer number (2195700).

Almost surely, 2^18150872 is an apocalyptic number.

It is an amenable number.

18150872 is a deficient number, since it is larger than the sum of its proper divisors (16980328).

18150872 is a wasteful number, since it uses less digits than its factorization.

18150872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73226 (or 73222 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 18150872 is about 4260.3840202498. The cubic root of 18150872 is about 262.8043188703.

The spelling of 18150872 in words is "eighteen million, one hundred fifty thousand, eight hundred seventy-two".