18682105 has 12 divisors (see below), whose sum is σ = 24276780. Its totient is φ = 13795392.

The previous prime is 18682091. The next prime is 18682109. The reversal of 18682105 is 50128681.

It can be written as a sum of positive squares in 6 ways, for example, as 7338681 + 11343424 = 2709^2 + 3368^2 .

It is a de Polignac number, because none of the positive numbers 2^k-18682105 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18682109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10210 + ... + 11899.

It is an arithmetic number, because the mean of its divisors is an integer number (2023065).

Almost surely, 2^18682105 is an apocalyptic number.

It is an amenable number.

18682105 is a deficient number, since it is larger than the sum of its proper divisors (5594675).

18682105 is a wasteful number, since it uses less digits than its factorization.

18682105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22140 (or 22127 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 18682105 is about 4322.2800695929. The cubic root of 18682105 is about 265.3435913407.

The spelling of 18682105 in words is "eighteen million, six hundred eighty-two thousand, one hundred five".