43730125 has 8 divisors (see below), whose sum is σ = 54575352. Its totient is φ = 34984000.

The previous prime is 43730123. The next prime is 43730161. The reversal of 43730125 is 52103734.

43730125 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 4153444 + 39576681 = 2038^2 + 6291^2 .

It is not a de Polignac number, because 43730125 - 2¹ = 43730123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43730125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43730123) 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, 174796 + ... + 175045.

It is an arithmetic number, because the mean of its divisors is an integer number (6821919).

Almost surely, 2^43730125 is an apocalyptic number.

It is an amenable number.

43730125 is a deficient number, since it is larger than the sum of its proper divisors (10845227).

43730125 is an equidigital number, since it uses as much as digits as its factorization.

43730125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349856 (or 349846 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 43730125 is about 6612.8756982118. The cubic root of 43730125 is about 352.3115704023.

Adding to 43730125 its reverse (52103734), we get a palindrome (95833859).

The spelling of 43730125 in words is "forty-three million, seven hundred thirty thousand, one hundred twenty-five".