43125222 has 16 divisors (see below), whose sum is σ = 98572032. Its totient is φ = 12321480.

The previous prime is 43125197. The next prime is 43125227. The reversal of 43125222 is 22252134.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43125227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513354 + ... + 513437.

It is an arithmetic number, because the mean of its divisors is an integer number (6160752).

Almost surely, 2^43125222 is an apocalyptic number.

43125222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

43125222 is an abundant number, since it is smaller than the sum of its proper divisors (55446810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43125222 is a wasteful number, since it uses less digits than its factorization.

43125222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026803.

The product of its digits is 960, while the sum is 21.

The square root of 43125222 is about 6566.9796710512. The cubic root of 43125222 is about 350.6795559187.

Adding to 43125222 its reverse (22252134), we get a palindrome (65377356).

The spelling of 43125222 in words is "forty-three million, one hundred twenty-five thousand, two hundred twenty-two".