18142586 has 16 divisors (see below), whose sum is σ = 33929280. Its totient is φ = 7068480.

The previous prime is 18142573. The next prime is 18142591. The reversal of 18142586 is 68524181.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58751 + ... + 59058.

It is an arithmetic number, because the mean of its divisors is an integer number (2120580).

Almost surely, 2^18142586 is an apocalyptic number.

18142586 is a deficient number, since it is larger than the sum of its proper divisors (15786694).

18142586 is a wasteful number, since it uses less digits than its factorization.

18142586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117829.

The product of its digits is 15360, while the sum is 35.

The square root of 18142586 is about 4259.4114616928. The cubic root of 18142586 is about 262.7643221136.

The spelling of 18142586 in words is "eighteen million, one hundred forty-two thousand, five hundred eighty-six".