18386105 has 8 divisors (see below), whose sum is σ = 22105032. Its totient is φ = 14681088.

The previous prime is 18386083. The next prime is 18386107. The reversal of 18386105 is 50168381.

It can be written as a sum of positive squares in 4 ways, for example, as 10394176 + 7991929 = 3224^2 + 2827^2 .

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 18386105 - 2⁸ = 18385849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18386107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (2763129).

Almost surely, 2^18386105 is an apocalyptic number.

It is an amenable number.

18386105 is a deficient number, since it is larger than the sum of its proper divisors (3718927).

18386105 is an equidigital number, since it uses as much as digits as its factorization.

18386105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 18386105 is about 4287.9021677272. The cubic root of 18386105 is about 263.9347529681.

The spelling of 18386105 in words is "eighteen million, three hundred eighty-six thousand, one hundred five".