43213241 has 2 divisors, whose sum is σ = 43213242. Its totient is φ = 43213240.

The previous prime is 43213217. The next prime is 43213243. The reversal of 43213241 is 14231234.

43213241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36348841 + 6864400 = 6029^2 + 2620^2 .

It is a cyclic number.

It is not a de Polignac number, because 43213241 - 2²² = 39018937 is a prime.

Together with 43213243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43213243) 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 as a sum of consecutive naturals, namely, 21606620 + 21606621.

It is an arithmetic number, because the mean of its divisors is an integer number (21606621).

Almost surely, 2^43213241 is an apocalyptic number.

It is an amenable number.

43213241 is a deficient number, since it is larger than the sum of its proper divisors (1).

43213241 is an equidigital number, since it uses as much as digits as its factorization.

43213241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 20.

The square root of 43213241 is about 6573.6778898878. The cubic root of 43213241 is about 350.9179739225.

Adding to 43213241 its reverse (14231234), we get a palindrome (57444475).

The spelling of 43213241 in words is "forty-three million, two hundred thirteen thousand, two hundred forty-one".