168845 has 4 divisors (see below), whose sum is σ = 202620. Its totient is φ = 135072.

The previous prime is 168803. The next prime is 168851. The reversal of 168845 is 548861.

168845 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 can be written as a sum of positive squares in 2 ways, for example, as 104329 + 64516 = 323^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 168845 - 2⁶ = 168781 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16880 + ... + 16889.

It is an arithmetic number, because the mean of its divisors is an integer number (50655).

2¹⁶⁸⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

168845 is a deficient number, since it is larger than the sum of its proper divisors (33775).

168845 is an equidigital number, since it uses as much as digits as its factorization.

168845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33774.

The product of its digits is 7680, while the sum is 32.

The square root of 168845 is about 410.9075321773. The cubic root of 168845 is about 55.2708404007.

The spelling of 168845 in words is "one hundred sixty-eight thousand, eight hundred forty-five".