18060859 has 4 divisors (see below), whose sum is σ = 18263880. Its totient is φ = 17857840.

The previous prime is 18060829. The next prime is 18060871. The reversal of 18060859 is 95806081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18060859 - 2¹³ = 18052667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18060829) 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 3 ways as a sum of consecutive naturals, for example, 101377 + ... + 101554.

It is an arithmetic number, because the mean of its divisors is an integer number (4565970).

Almost surely, 2^18060859 is an apocalyptic number.

18060859 is a deficient number, since it is larger than the sum of its proper divisors (203021).

18060859 is an equidigital number, since it uses as much as digits as its factorization.

18060859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203020.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 18060859 is about 4249.8069367914. The cubic root of 18060859 is about 262.3691695742.

The spelling of 18060859 in words is "eighteen million, sixty thousand, eight hundred fifty-nine".