18080117 has 8 divisors (see below), whose sum is σ = 19755360. Its totient is φ = 16410160.

The previous prime is 18080063. The next prime is 18080119. The reversal of 18080117 is 71108081.

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 18080117 - 2²⁰ = 17031541 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 (18080119) 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 7 ways as a sum of consecutive naturals, for example, 10403 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (2469420).

Almost surely, 2^18080117 is an apocalyptic number.

It is an amenable number.

18080117 is a deficient number, since it is larger than the sum of its proper divisors (1675243).

18080117 is a wasteful number, since it uses less digits than its factorization.

18080117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 18080117 is about 4252.0720831143. The cubic root of 18080117 is about 262.4623897741.

Adding to 18080117 its reverse (71108081), we get a palindrome (89188198).

The spelling of 18080117 in words is "eighteen million, eighty thousand, one hundred seventeen".