43073 has 4 divisors (see below), whose sum is σ = 45360. Its totient is φ = 40788.

The previous prime is 43067. The next prime is 43093. The reversal of 43073 is 37034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37034 = 2 ⋅18517.

It is a cyclic number.

It is not a de Polignac number, because 43073 - 2¹² = 38977 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

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 (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115 + ... + 1152.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

2⁴³⁰⁷³ is an apocalyptic number.

It is an amenable number.

43073 is a deficient number, since it is larger than the sum of its proper divisors (2287).

43073 is a wasteful number, since it uses less digits than its factorization.

43073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 43073 is about 207.5403575211. The cubic root of 43073 is about 35.0537948263.

It can be divided in two parts, 4307 and 3, that multiplied together give a palindrome (12921).

The spelling of 43073 in words is "forty-three thousand, seventy-three", and thus it is an iban number.