18485117 has 8 divisors (see below), whose sum is σ = 21153600. Its totient is φ = 15823584.

The previous prime is 18485111. The next prime is 18485143. The reversal of 18485117 is 71158481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18485117 - 2¹⁶ = 18419581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18485111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6734 + ... + 9072.

It is an arithmetic number, because the mean of its divisors is an integer number (2644200).

Almost surely, 2^18485117 is an apocalyptic number.

It is an amenable number.

18485117 is a deficient number, since it is larger than the sum of its proper divisors (2668483).

18485117 is a wasteful number, since it uses less digits than its factorization.

18485117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475.

The product of its digits is 8960, while the sum is 35.

The square root of 18485117 is about 4299.4321718106. The cubic root of 18485117 is about 264.4076814477.

The spelling of 18485117 in words is "eighteen million, four hundred eighty-five thousand, one hundred seventeen".