18105099 has 8 divisors (see below), whose sum is σ = 24792720. Its totient is φ = 11743776.

The previous prime is 18105097. The next prime is 18105103. The reversal of 18105099 is 99050181.

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

It is not a de Polignac number, because 18105099 - 2¹ = 18105097 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (18105091) 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, 81444 + ... + 81665.

It is an arithmetic number, because the mean of its divisors is an integer number (3099090).

Almost surely, 2^18105099 is an apocalyptic number.

18105099 is a deficient number, since it is larger than the sum of its proper divisors (6687621).

18105099 is a wasteful number, since it uses less digits than its factorization.

18105099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163149.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 18105099 is about 4255.0086956433. The cubic root of 18105099 is about 262.5832189662.

The spelling of 18105099 in words is "eighteen million, one hundred five thousand, ninety-nine".