168243 has 4 divisors (see below), whose sum is σ = 224328. Its totient is φ = 112160.

The previous prime is 168227. The next prime is 168247. The reversal of 168243 is 342861.

It is a happy number.

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 168243 - 2⁴ = 168227 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (168247) 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, 28038 + ... + 28043.

It is an arithmetic number, because the mean of its divisors is an integer number (56082).

2¹⁶⁸²⁴³ is an apocalyptic number.

168243 is a deficient number, since it is larger than the sum of its proper divisors (56085).

168243 is an equidigital number, since it uses as much as digits as its factorization.

168243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56084.

The product of its digits is 1152, while the sum is 24.

The square root of 168243 is about 410.1743531719. The cubic root of 168243 is about 55.2050746227.

The spelling of 168243 in words is "one hundred sixty-eight thousand, two hundred forty-three".