43264213 has 2 divisors, whose sum is σ = 43264214. Its totient is φ = 43264212.

The previous prime is 43264163. The next prime is 43264229. The reversal of 43264213 is 31246234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31382404 + 11881809 = 5602^2 + 3447^2 .

It is a cyclic number.

It is not a de Polignac number, because 43264213 - 2¹³ = 43256021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43264913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21632106 + 21632107.

It is an arithmetic number, because the mean of its divisors is an integer number (21632107).

Almost surely, 2^43264213 is an apocalyptic number.

It is an amenable number.

43264213 is a deficient number, since it is larger than the sum of its proper divisors (1).

43264213 is an equidigital number, since it uses as much as digits as its factorization.

43264213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

The square root of 43264213 is about 6577.5537246001. The cubic root of 43264213 is about 351.0558943246.

The spelling of 43264213 in words is "forty-three million, two hundred sixty-four thousand, two hundred thirteen".