43113861 has 12 divisors (see below), whose sum is σ = 71172192. Its totient is φ = 24636456.

The previous prime is 43113859. The next prime is 43113871. The reversal of 43113861 is 16831134.

43113861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43113861 - 2¹ = 43113859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43113871) 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 11 ways as a sum of consecutive naturals, for example, 342111 + ... + 342236.

It is an arithmetic number, because the mean of its divisors is an integer number (5931016).

Almost surely, 2^43113861 is an apocalyptic number.

It is an amenable number.

43113861 is a deficient number, since it is larger than the sum of its proper divisors (28058331).

43113861 is a wasteful number, since it uses less digits than its factorization.

43113861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684360 (or 684357 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 43113861 is about 6566.1146045435. The cubic root of 43113861 is about 350.6487586253.

Adding to 43113861 its reverse (16831134), we get a palindrome (59944995).

The spelling of 43113861 in words is "forty-three million, one hundred thirteen thousand, eight hundred sixty-one".