18134 has 4 divisors (see below), whose sum is σ = 27204. Its totient is φ = 9066.

The previous prime is 18133. The next prime is 18143. The reversal of 18134 is 43181.

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: 43181 = 29 ⋅1489.

It is a Curzon number.

It is a plaindrome in base 9 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4532 + ... + 4535.

It is an arithmetic number, because the mean of its divisors is an integer number (6801).

2¹⁸¹³⁴ is an apocalyptic number.

18134 is a deficient number, since it is larger than the sum of its proper divisors (9070).

18134 is an equidigital number, since it uses as much as digits as its factorization.

18134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9069.

The product of its digits is 96, while the sum is 17.

The square root of 18134 is about 134.6625411909. The cubic root of 18134 is about 26.2722864399.

The spelling of 18134 in words is "eighteen thousand, one hundred thirty-four".