18059995 has 8 divisors (see below), whose sum is σ = 21875184. Its totient is φ = 14312544.

The previous prime is 18059983. The next prime is 18060017. The reversal of 18059995 is 59995081.

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 18059995 - 2⁵ = 18059963 is a prime.

It is a Duffinian 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, 16344 + ... + 17413.

It is an arithmetic number, because the mean of its divisors is an integer number (2734398).

Almost surely, 2^18059995 is an apocalyptic number.

18059995 is a deficient number, since it is larger than the sum of its proper divisors (3815189).

18059995 is a wasteful number, since it uses less digits than its factorization.

18059995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33869.

The product of its (nonzero) digits is 145800, while the sum is 46.

The square root of 18059995 is about 4249.7052838991. The cubic root of 18059995 is about 262.3649857463.

The spelling of 18059995 in words is "eighteen million, fifty-nine thousand, nine hundred ninety-five".