43116845 has 24 divisors (see below), whose sum is σ = 56105784. Its totient is φ = 31696896.

The previous prime is 43116839. The next prime is 43116847. The reversal of 43116845 is 54861134.

43116845 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 879844 + 42237001 = 938^2 + 6499^2 .

It is not a de Polignac number, because 43116845 - 2⁸ = 43116589 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 (43116847) 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 23 ways as a sum of consecutive naturals, for example, 381509 + ... + 381621.

It is an arithmetic number, because the mean of its divisors is an integer number (2337741).

Almost surely, 2^43116845 is an apocalyptic number.

It is an amenable number.

43116845 is a deficient number, since it is larger than the sum of its proper divisors (12988939).

43116845 is a wasteful number, since it uses less digits than its factorization.

43116845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 202 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 43116845 is about 6566.3418278369. The cubic root of 43116845 is about 350.6568481487.

Adding to 43116845 its reverse (54861134), we get a palindrome (97977979).

The spelling of 43116845 in words is "forty-three million, one hundred sixteen thousand, eight hundred forty-five".