43066121 has 8 divisors (see below), whose sum is σ = 49772160. Its totient is φ = 36498528.

The previous prime is 43066069. The next prime is 43066129. The reversal of 43066121 is 12166034.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43066121 - 2⁶ = 43066057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43066129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33941 + ... + 35186.

It is an arithmetic number, because the mean of its divisors is an integer number (6221520).

Almost surely, 2^43066121 is an apocalyptic number.

It is an amenable number.

43066121 is a deficient number, since it is larger than the sum of its proper divisors (6706039).

43066121 is an equidigital number, since it uses as much as digits as its factorization.

43066121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69223.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 43066121 is about 6562.4782666307. The cubic root of 43066121 is about 350.5192863096.

The spelling of 43066121 in words is "forty-three million, sixty-six thousand, one hundred twenty-one".