43189 has 2 divisors, whose sum is σ = 43190. Its totient is φ = 43188.

The previous prime is 43177. The next prime is 43201. The reversal of 43189 is 98134.

43189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (43177) and next prime (43201).

It can be written as a sum of positive squares in only one way, i.e., 24964 + 18225 = 158^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 43189 - 2⁹ = 42677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21594 + 21595.

It is an arithmetic number, because the mean of its divisors is an integer number (21595).

2⁴³¹⁸⁹ is an apocalyptic number.

It is an amenable number.

43189 is a deficient number, since it is larger than the sum of its proper divisors (1).

43189 is an equidigital number, since it uses as much as digits as its factorization.

43189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 43189 is about 207.8196333362. The cubic root of 43189 is about 35.0852344395.

Subtracting 43189 from its reverse (98134), we obtain a palindrome (54945).

It can be divided in two parts, 43 and 189, that added together give a palindrome (232).

The spelling of 43189 in words is "forty-three thousand, one hundred eighty-nine".