9018172 has 12 divisors (see below), whose sum is σ = 16117920. Its totient is φ = 4413056.

The previous prime is 9018169. The next prime is 9018193. The reversal of 9018172 is 2718109.

9018172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9018172.

It is a congruent number.

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, 23797 + ... + 24172.

It is an arithmetic number, because the mean of its divisors is an integer number (1343160).

Almost surely, 2^9018172 is an apocalyptic number.

It is an amenable number.

9018172 is a deficient number, since it is larger than the sum of its proper divisors (7099748).

9018172 is a wasteful number, since it uses less digits than its factorization.

9018172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48020 (or 48018 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 9018172 is about 3003.0271394045. The cubic root of 9018172 is about 208.1482855326.

The spelling of 9018172 in words is "nine million, eighteen thousand, one hundred seventy-two".