18654085 has 4 divisors (see below), whose sum is σ = 22384908. Its totient is φ = 14923264.

The previous prime is 18654079. The next prime is 18654109. The reversal of 18654085 is 58045681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58045681 = 107 ⋅542483.

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 12013156 = 2577^2 + 3466^2 .

It is a cyclic number.

It is not a de Polignac number, because 18654085 - 2¹¹ = 18652037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865404 + ... + 1865413.

It is an arithmetic number, because the mean of its divisors is an integer number (5596227).

Almost surely, 2^18654085 is an apocalyptic number.

It is an amenable number.

18654085 is a deficient number, since it is larger than the sum of its proper divisors (3730823).

18654085 is an equidigital number, since it uses as much as digits as its factorization.

18654085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730822.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 18654085 is about 4319.0375085197. The cubic root of 18654085 is about 265.2108681175.

The spelling of 18654085 in words is "eighteen million, six hundred fifty-four thousand, eighty-five".