43130233 has 4 divisors (see below), whose sum is σ = 43837348. Its totient is φ = 42423120.

The previous prime is 43130231. The next prime is 43130249. The reversal of 43130233 is 33203134.

43130233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5822569 + 37307664 = 2413^2 + 6108^2 .

It is a cyclic number.

It is not a de Polignac number, because 43130233 - 2¹ = 43130231 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 43130233.

It is not an unprimeable number, because it can be changed into a prime (43130231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353466 + ... + 353587.

It is an arithmetic number, because the mean of its divisors is an integer number (10959337).

Almost surely, 2^43130233 is an apocalyptic number.

It is an amenable number.

43130233 is a deficient number, since it is larger than the sum of its proper divisors (707115).

43130233 is an equidigital number, since it uses as much as digits as its factorization.

43130233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707114.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 43130233 is about 6567.3611900062. The cubic root of 43130233 is about 350.6931379720.

Adding to 43130233 its reverse (33203134), we get a palindrome (76333367).

The spelling of 43130233 in words is "forty-three million, one hundred thirty thousand, two hundred thirty-three".