18082 has 4 divisors (see below), whose sum is σ = 27126. Its totient is φ = 9040.

The previous prime is 18077. The next prime is 18089. The reversal of 18082 is 28081.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 9801 + 8281 = 99^2 + 91^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (18089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4519 + ... + 4522.

2¹⁸⁰⁸² is an apocalyptic number.

18082 is a deficient number, since it is larger than the sum of its proper divisors (9044).

18082 is an equidigital number, since it uses as much as digits as its factorization.

18082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 18082 is about 134.4693273576. The cubic root of 18082 is about 26.2471501063.

Subtracting 18082 from its reverse (28081), we obtain a palindrome (9999).

It can be divided in two parts, 180 and 82, that added together give a palindrome (262).

The spelling of 18082 in words is "eighteen thousand, eighty-two".