43066069 has 2 divisors, whose sum is σ = 43066070. Its totient is φ = 43066068.

The previous prime is 43066063. The next prime is 43066129. The reversal of 43066069 is 96066034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31080625 + 11985444 = 5575^2 + 3462^2 .

It is a cyclic number.

It is not a de Polignac number, because 43066069 - 2⁷ = 43065941 is a prime.

It is a super-2 number, since 2×43066069² = 3709372598225522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43066063) 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, 21533034 + 21533035.

It is an arithmetic number, because the mean of its divisors is an integer number (21533035).

Almost surely, 2^43066069 is an apocalyptic number.

It is an amenable number.

43066069 is a deficient number, since it is larger than the sum of its proper divisors (1).

43066069 is an equidigital number, since it uses as much as digits as its factorization.

43066069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 43066069 is about 6562.4743047116. The cubic root of 43066069 is about 350.5191452319.

The spelling of 43066069 in words is "forty-three million, sixty-six thousand, sixty-nine".