43125215 has 16 divisors (see below), whose sum is σ = 59268672. Its totient is φ = 29508864.

The previous prime is 43125197. The next prime is 43125227. The reversal of 43125215 is 51252134.

43125215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43125215 - 2²² = 38930911 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 20597 + ... + 22593.

It is an arithmetic number, because the mean of its divisors is an integer number (3704292).

Almost surely, 2^43125215 is an apocalyptic number.

43125215 is a deficient number, since it is larger than the sum of its proper divisors (16143457).

43125215 is a wasteful number, since it uses less digits than its factorization.

43125215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626.

The product of its digits is 1200, while the sum is 23.

The square root of 43125215 is about 6566.9791380817. The cubic root of 43125215 is about 350.6795369448.

Adding to 43125215 its reverse (51252134), we get a palindrome (94377349).

The spelling of 43125215 in words is "forty-three million, one hundred twenty-five thousand, two hundred fifteen".