43116209 has 8 divisors (see below), whose sum is σ = 44164680. Its totient is φ = 42080256.

The previous prime is 43116179. The next prime is 43116217. The reversal of 43116209 is 90261134.

43116209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2755600 + 40360609 = 1660^2 + 6353^2 .

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 43116209 - 2¹⁶ = 43050673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43116299) 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 in 7 ways as a sum of consecutive naturals, for example, 4037 + ... + 10125.

It is an arithmetic number, because the mean of its divisors is an integer number (5520585).

Almost surely, 2^43116209 is an apocalyptic number.

It is an amenable number.

43116209 is a deficient number, since it is larger than the sum of its proper divisors (1048471).

43116209 is an equidigital number, since it uses as much as digits as its factorization.

43116209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 43116209 is about 6566.2933988667. The cubic root of 43116209 is about 350.6551240054.

The spelling of 43116209 in words is "forty-three million, one hundred sixteen thousand, two hundred nine".