18006117 has 8 divisors (see below), whose sum is σ = 24129600. Its totient is φ = 11943360.

The previous prime is 18006113. The next prime is 18006127. The reversal of 18006117 is 71160081.

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

It is not a de Polignac number, because 18006117 - 2² = 18006113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18006113) 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, 14484 + ... + 15677.

It is an arithmetic number, because the mean of its divisors is an integer number (3016200).

Almost surely, 2^18006117 is an apocalyptic number.

It is an amenable number.

18006117 is a deficient number, since it is larger than the sum of its proper divisors (6123483).

18006117 is a wasteful number, since it uses less digits than its factorization.

18006117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30363.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 18006117 is about 4243.3615212470. The cubic root of 18006117 is about 262.1038232348.

Adding to 18006117 its reverse (71160081), we get a palindrome (89166198).

The spelling of 18006117 in words is "eighteen million, six thousand, one hundred seventeen".