18501085 has 8 divisors (see below), whose sum is σ = 23166720. Its totient is φ = 14157264.

The previous prime is 18501061. The next prime is 18501103. The reversal of 18501085 is 58010581.

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 18501085 - 2¹⁹ = 17976797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80325 + ... + 80554.

It is an arithmetic number, because the mean of its divisors is an integer number (2895840).

Almost surely, 2^18501085 is an apocalyptic number.

It is an amenable number.

18501085 is a deficient number, since it is larger than the sum of its proper divisors (4665635).

18501085 is a wasteful number, since it uses less digits than its factorization.

18501085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160907.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 18501085 is about 4301.2887603601. The cubic root of 18501085 is about 264.4837939716.

The spelling of 18501085 in words is "eighteen million, five hundred one thousand, eighty-five".