18045611 has 8 divisors (see below), whose sum is σ = 19225920. Its totient is φ = 16888392.

The previous prime is 18045607. The next prime is 18045623. The reversal of 18045611 is 11654081.

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

It is a cyclic number.

It is not a de Polignac number, because 18045611 - 2² = 18045607 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (18045631) 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 7 ways as a sum of consecutive naturals, for example, 4145 + ... + 7298.

It is an arithmetic number, because the mean of its divisors is an integer number (2403240).

Almost surely, 2^18045611 is an apocalyptic number.

18045611 is a deficient number, since it is larger than the sum of its proper divisors (1180309).

18045611 is a wasteful number, since it uses less digits than its factorization.

18045611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11545.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 18045611 is about 4248.0125941433. The cubic root of 18045611 is about 262.2953131485.

Adding to 18045611 its reverse (11654081), we get a palindrome (29699692).

The spelling of 18045611 in words is "eighteen million, forty-five thousand, six hundred eleven".