18065201 has 8 divisors (see below), whose sum is σ = 22522944. Its totient is φ = 14076720.

The previous prime is 18065191. The next prime is 18065221. The reversal of 18065201 is 10256081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18065201 - 2⁶ = 18065137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18065221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117230 + ... + 117383.

It is an arithmetic number, because the mean of its divisors is an integer number (2815368).

Almost surely, 2^18065201 is an apocalyptic number.

18065201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18065201 is a deficient number, since it is larger than the sum of its proper divisors (4457743).

18065201 is a wasteful number, since it uses less digits than its factorization.

18065201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234631.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 18065201 is about 4250.3177528274. The cubic root of 18065201 is about 262.3901932264.

It can be divided in two parts, 1806 and 5201, that added together give a palindrome (7007).

The spelling of 18065201 in words is "eighteen million, sixty-five thousand, two hundred one".