43049213 has 2 divisors, whose sum is σ = 43049214. Its totient is φ = 43049212.

The previous prime is 43049191. The next prime is 43049239. The reversal of 43049213 is 31294034.

43049213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (43049239) can be obtained adding 43049213 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32467204 + 10582009 = 5698^2 + 3253^2 .

It is a cyclic number.

It is not a de Polignac number, because 43049213 - 2²⁴ = 26271997 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43049263) 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, 21524606 + 21524607.

It is an arithmetic number, because the mean of its divisors is an integer number (21524607).

Almost surely, 2^43049213 is an apocalyptic number.

It is an amenable number.

43049213 is a deficient number, since it is larger than the sum of its proper divisors (1).

43049213 is an equidigital number, since it uses as much as digits as its factorization.

43049213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 43049213 is about 6561.1899073263. The cubic root of 43049213 is about 350.4734083610.

The spelling of 43049213 in words is "forty-three million, forty-nine thousand, two hundred thirteen".