18064171 has 4 divisors (see below), whose sum is σ = 18484312. Its totient is φ = 17644032.

The previous prime is 18064159. The next prime is 18064181. The reversal of 18064171 is 17146081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18064171 - 2¹¹ = 18062123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18064181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210006 + ... + 210091.

It is an arithmetic number, because the mean of its divisors is an integer number (4621078).

Almost surely, 2^18064171 is an apocalyptic number.

18064171 is a deficient number, since it is larger than the sum of its proper divisors (420141).

18064171 is an equidigital number, since it uses as much as digits as its factorization.

18064171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420140.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 18064171 is about 4250.1965836888. The cubic root of 18064171 is about 262.3852063452.

The spelling of 18064171 in words is "eighteen million, sixty-four thousand, one hundred seventy-one".