43381125 has 24 divisors (see below), whose sum is σ = 78203736. Its totient is φ = 23136000.

The previous prime is 43381111. The next prime is 43381159. The reversal of 43381125 is 52118334.

It is a happy number.

43381125 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 5225796 + 38155329 = 2286^2 + 6177^2 .

It is not a de Polignac number, because 43381125 - 2¹⁰ = 43380101 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 18156 + ... + 20405.

It is an arithmetic number, because the mean of its divisors is an integer number (3258489).

Almost surely, 2^43381125 is an apocalyptic number.

43381125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43381125 is a deficient number, since it is larger than the sum of its proper divisors (34822611).

43381125 is a wasteful number, since it uses less digits than its factorization.

43381125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38582 (or 38569 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 43381125 is about 6586.4349233861. The cubic root of 43381125 is about 351.3718269759.

Adding to 43381125 its reverse (52118334), we get a palindrome (95499459).

The spelling of 43381125 in words is "forty-three million, three hundred eighty-one thousand, one hundred twenty-five".