43023 has 4 divisors (see below), whose sum is σ = 57368.
Its totient is φ = 28680.
The previous prime is 43019. The next prime is 43037. The reversal of 43023 is 32034.
Adding to 43023 its reverse (32034), we get a palindrome (75057).
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 43023 - 22 = 43019 is a prime.
It is a D-number.
It is a Duffinian number.
It is a nialpdrome in base 15.
It is a zygodrome in base 4.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (43003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7168 + ... + 7173.
It is an arithmetic number, because the mean of its divisors is an integer number (14342).
243023 is an apocalyptic number.
43023 is a deficient number, since it is larger than the sum of its proper divisors (14345).
43023 is a wasteful number, since it uses less digits than its factorization.
43023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14344.
The product of its (nonzero) digits is 72, while the sum is 12.
The square root of 43023 is about 207.4198640439.
The cubic root of 43023 is about 35.0402258591.
The spelling of 43023 in words is "forty-three thousand, twenty-three", and thus it is an iban number.