43012243 has 4 divisors (see below), whose sum is σ = 43029400. Its totient is φ = 42995088.

The previous prime is 43012217. The next prime is 43012253. The reversal of 43012243 is 34221034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43012243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43012243.

It is not an unprimeable number, because it can be changed into a prime (43012213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4005 + ... + 10102.

It is an arithmetic number, because the mean of its divisors is an integer number (10757350).

Almost surely, 2^43012243 is an apocalyptic number.

43012243 is a deficient number, since it is larger than the sum of its proper divisors (17157).

43012243 is a wasteful number, since it uses less digits than its factorization.

43012243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17156.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 43012243 is about 6558.3719778616. The cubic root of 43012243 is about 350.3730525754.

Adding to 43012243 its reverse (34221034), we get a palindrome (77233277).

The spelling of 43012243 in words is "forty-three million, twelve thousand, two hundred forty-three".