168543 has 12 divisors (see below), whose sum is σ = 248248. Its totient is φ = 110160.

The previous prime is 168541. The next prime is 168559. The reversal of 168543 is 345861.

It is not a de Polignac number, because 168543 - 2¹ = 168541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396 + ... + 702.

2¹⁶⁸⁵⁴³ is an apocalyptic number.

168543 is a deficient number, since it is larger than the sum of its proper divisors (79705).

168543 is a wasteful number, since it uses less digits than its factorization.

168543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 371 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 168543 is about 410.5398884396. The cubic root of 168543 is about 55.2378678411.

It can be divided in two parts, 1685 and 43, that added together give a cube (1728 = 12³).

The spelling of 168543 in words is "one hundred sixty-eight thousand, five hundred forty-three".