43066261 has 16 divisors (see below), whose sum is σ = 50823936. Its totient is φ = 35721216.

The previous prime is 43066259. The next prime is 43066279. The reversal of 43066261 is 16266034.

It is a cyclic number.

It is not a de Polignac number, because 43066261 - 2¹ = 43066259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43066201) 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 in 15 ways as a sum of consecutive naturals, for example, 66240 + ... + 66886.

It is an arithmetic number, because the mean of its divisors is an integer number (3176496).

Almost surely, 2^43066261 is an apocalyptic number.

It is an amenable number.

43066261 is a deficient number, since it is larger than the sum of its proper divisors (7757675).

43066261 is a wasteful number, since it uses less digits than its factorization.

43066261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 43066261 is about 6562.4889333240. The cubic root of 43066261 is about 350.5196661337.

The spelling of 43066261 in words is "forty-three million, sixty-six thousand, two hundred sixty-one".