18014 has 4 divisors (see below), whose sum is σ = 27024. Its totient is φ = 9006.

The previous prime is 18013. The next prime is 18041. The reversal of 18014 is 41081.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 18014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4502 + ... + 4505.

It is an arithmetic number, because the mean of its divisors is an integer number (6756).

2¹⁸⁰¹⁴ is an apocalyptic number.

18014 is a deficient number, since it is larger than the sum of its proper divisors (9010).

18014 is an equidigital number, since it uses as much as digits as its factorization.

18014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 18014 is about 134.2162434283. The cubic root of 18014 is about 26.2142066960.

Adding to 18014 its reverse (41081), we get a palindrome (59095).

The spelling of 18014 in words is "eighteen thousand, fourteen".