165027 has 4 divisors (see below), whose sum is σ = 220040. Its totient is φ = 110016.

The previous prime is 165001. The next prime is 165037. The reversal of 165027 is 720561.

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

It is not a de Polignac number, because 165027 - 2⁶ = 164963 is a prime.

It is a D-number.

It is a Duffinian number.

165027 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 164994 and 165012.

It is not an unprimeable number, because it can be changed into a prime (165037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27502 + ... + 27507.

It is an arithmetic number, because the mean of its divisors is an integer number (55010).

2¹⁶⁵⁰²⁷ is an apocalyptic number.

165027 is a deficient number, since it is larger than the sum of its proper divisors (55013).

165027 is an equidigital number, since it uses as much as digits as its factorization.

165027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55012.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 165027 is about 406.2351535749. The cubic root of 165027 is about 54.8510570738.

Adding to 165027 its reverse (720561), we get a palindrome (885588).

The spelling of 165027 in words is "one hundred sixty-five thousand, twenty-seven".