43091103 has 16 divisors (see below), whose sum is σ = 63475200. Its totient is φ = 25783680.

The previous prime is 43091101. The next prime is 43091131. The reversal of 43091103 is 30119034.

It is not a de Polignac number, because 43091103 - 2¹ = 43091101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43091103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43091101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5658 + ... + 10871.

It is an arithmetic number, because the mean of its divisors is an integer number (3967200).

Almost surely, 2^43091103 is an apocalyptic number.

43091103 is a deficient number, since it is larger than the sum of its proper divisors (20384097).

43091103 is a wasteful number, since it uses less digits than its factorization.

43091103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16622.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 43091103 is about 6564.3813874576. The cubic root of 43091103 is about 350.5870501725.

The spelling of 43091103 in words is "forty-three million, ninety-one thousand, one hundred three".