18020107 has 12 divisors (see below), whose sum is σ = 21336016. Its totient is φ = 14908320.

The previous prime is 18020089. The next prime is 18020111. The reversal of 18020107 is 70102081.

It is not a de Polignac number, because 18020107 - 2¹¹ = 18018059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18024107) 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 11 ways as a sum of consecutive naturals, for example, 4357 + ... + 7417.

Almost surely, 2^18020107 is an apocalyptic number.

18020107 is a deficient number, since it is larger than the sum of its proper divisors (3315909).

18020107 is an equidigital number, since it uses as much as digits as its factorization.

18020107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 18020107 is about 4245.0096584107. The cubic root of 18020107 is about 262.1716868991.

Adding to 18020107 its reverse (70102081), we get a palindrome (88122188).

The spelling of 18020107 in words is "eighteen million, twenty thousand, one hundred seven".