16118 has 4 divisors (see below), whose sum is σ = 24180. Its totient is φ = 8058.

The previous prime is 16111. The next prime is 16127. The reversal of 16118 is 81161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81161 = 277 ⋅293.

It is a Curzon number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 16096 and 16105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16111) by changing a digit.

16118 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 4028 + ... + 4031.

It is an arithmetic number, because the mean of its divisors is an integer number (6045).

2¹⁶¹¹⁸ is an apocalyptic number.

16118 is a deficient number, since it is larger than the sum of its proper divisors (8062).

16118 is an equidigital number, since it uses as much as digits as its factorization.

16118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8061.

The product of its digits is 48, while the sum is 17.

The square root of 16118 is about 126.9566855270. The cubic root of 16118 is about 25.2602154529.

Adding to 16118 its reverse (81161), we get a palindrome (97279).

The spelling of 16118 in words is "sixteen thousand, one hundred eighteen".