43228125 has 72 divisors (see below), whose sum is σ = 82260360. Its totient is φ = 21840000.

The previous prime is 43228123. The next prime is 43228177. The reversal of 43228125 is 52182234.

It can be written as a sum of positive squares in 12 ways, for example, as 42068196 + 1159929 = 6486^2 + 1077^2 .

It is not a de Polignac number, because 43228125 - 2¹ = 43228123 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43228121) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 815599 + ... + 815651.

It is an arithmetic number, because the mean of its divisors is an integer number (1142505).

Almost surely, 2^43228125 is an apocalyptic number.

43228125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43228125 is a deficient number, since it is larger than the sum of its proper divisors (39032235).

43228125 is an equidigital number, since it uses as much as digits as its factorization.

43228125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 90 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 43228125 is about 6574.8098831829. The cubic root of 43228125 is about 350.9582583620.

The spelling of 43228125 in words is "forty-three million, two hundred twenty-eight thousand, one hundred twenty-five".