18114172 has 6 divisors (see below), whose sum is σ = 31699808. Its totient is φ = 9057084.

The previous prime is 18114167. The next prime is 18114193. The reversal of 18114172 is 27141181.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2264268 + ... + 2264275.

Almost surely, 2^18114172 is an apocalyptic number.

It is an amenable number.

18114172 is a deficient number, since it is larger than the sum of its proper divisors (13585636).

18114172 is a wasteful number, since it uses less digits than its factorization.

18114172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528547 (or 4528545 counting only the distinct ones).

The product of its digits is 448, while the sum is 25.

The square root of 18114172 is about 4256.0747173893. The cubic root of 18114172 is about 262.6270743775.

The spelling of 18114172 in words is "eighteen million, one hundred fourteen thousand, one hundred seventy-two".