158543 has 16 divisors (see below), whose sum is σ = 207360. Its totient is φ = 117600.

The previous prime is 158537. The next prime is 158551. The reversal of 158543 is 345851.

It is not a de Polignac number, because 158543 - 2⁴ = 158527 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2198 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (12960).

2¹⁵⁸⁵⁴³ is an apocalyptic number.

158543 is a deficient number, since it is larger than the sum of its proper divisors (48817).

158543 is a wasteful number, since it uses less digits than its factorization.

158543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118.

The product of its digits is 2400, while the sum is 26.

The square root of 158543 is about 398.1745848243. The cubic root of 158543 is about 54.1230618169.

It can be divided in two parts, 15 and 8543, that added together give a palindrome (8558).

The spelling of 158543 in words is "one hundred fifty-eight thousand, five hundred forty-three".