18014117 has 12 divisors (see below), whose sum is σ = 20181420. Its totient is φ = 16067480.

The previous prime is 18014111. The next prime is 18014167. The reversal of 18014117 is 71141081.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 8116801 + 9897316 = 2849^2 + 3146^2 .

It is not a de Polignac number, because 18014117 - 2²⁴ = 1236901 is a prime.

It is a super-2 number, since 2×18014117² = 649016822579378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18014092 and 18014101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18014111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339863 + ... + 339915.

It is an arithmetic number, because the mean of its divisors is an integer number (1681785).

Almost surely, 2^18014117 is an apocalyptic number.

It is an amenable number.

18014117 is a deficient number, since it is larger than the sum of its proper divisors (2167303).

18014117 is an frugal number, since it uses more digits than its factorization.

18014117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 18014117 is about 4244.3040654505. The cubic root of 18014117 is about 262.1426344922.

Adding to 18014117 its reverse (71141081), we get a palindrome (89155198).

The spelling of 18014117 in words is "eighteen million, fourteen thousand, one hundred seventeen".