165534 has 16 divisors (see below), whose sum is σ = 338688. Its totient is φ = 53912.

The previous prime is 165533. The next prime is 165541. The reversal of 165534 is 435561.

165534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12 + ... + 575.

It is an arithmetic number, because the mean of its divisors is an integer number (21168).

2¹⁶⁵⁵³⁴ is an apocalyptic number.

165534 is an abundant number, since it is smaller than the sum of its proper divisors (173154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165534 is a wasteful number, since it uses less digits than its factorization.

165534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639.

The product of its digits is 1800, while the sum is 24.

The square root of 165534 is about 406.8586978301. The cubic root of 165534 is about 54.9071712358.

The spelling of 165534 in words is "one hundred sixty-five thousand, five hundred thirty-four".