18065241 has 16 divisors (see below), whose sum is σ = 26832000. Its totient is φ = 12012624.

The previous prime is 18065227. The next prime is 18065251. The reversal of 18065241 is 14256081.

18065241 is a `hidden beast` number, since 1 + 8 + 0 + 652 + 4 + 1 = 666.

It is not a de Polignac number, because 18065241 - 2¹⁵ = 18032473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (18065221) 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 15 ways as a sum of consecutive naturals, for example, 15615 + ... + 16731.

It is an arithmetic number, because the mean of its divisors is an integer number (1677000).

Almost surely, 2^18065241 is an apocalyptic number.

It is an amenable number.

18065241 is a deficient number, since it is larger than the sum of its proper divisors (8766759).

18065241 is a wasteful number, since it uses less digits than its factorization.

18065241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 18065241 is about 4250.3224583554. The cubic root of 18065241 is about 262.3903868879.

The spelling of 18065241 in words is "eighteen million, sixty-five thousand, two hundred forty-one".