165683 has 4 divisors (see below), whose sum is σ = 189360. Its totient is φ = 142008.

The previous prime is 165673. The next prime is 165701. The reversal of 165683 is 386561.

165683 = T₂₃₂ + T₂₃₃ + ... + T₂₃₇.

165683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 165683 - 2⁴ = 165667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11828 + ... + 11841.

It is an arithmetic number, because the mean of its divisors is an integer number (47340).

2¹⁶⁵⁶⁸³ is an apocalyptic number.

165683 is a deficient number, since it is larger than the sum of its proper divisors (23677).

165683 is an equidigital number, since it uses as much as digits as its factorization.

165683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23676.

The product of its digits is 4320, while the sum is 29.

The square root of 165683 is about 407.0417668987. The cubic root of 165683 is about 54.9236405917.

It can be divided in two parts, 165 and 683, that added together give a palindrome (848).

The spelling of 165683 in words is "one hundred sixty-five thousand, six hundred eighty-three".