43125213 has 4 divisors (see below), whose sum is σ = 57500288. Its totient is φ = 28750140.

The previous prime is 43125197. The next prime is 43125227. The reversal of 43125213 is 31252134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43125213 - 2⁴ = 43125197 is a prime.

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 43125213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43125013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7187533 + ... + 7187538.

It is an arithmetic number, because the mean of its divisors is an integer number (14375072).

Almost surely, 2^43125213 is an apocalyptic number.

It is an amenable number.

43125213 is a deficient number, since it is larger than the sum of its proper divisors (14375075).

43125213 is a wasteful number, since it uses less digits than its factorization.

43125213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14375074.

The product of its digits is 720, while the sum is 21.

The square root of 43125213 is about 6566.9789858047. The cubic root of 43125213 is about 350.6795315237.

Adding to 43125213 its reverse (31252134), we get a palindrome (74377347).

The spelling of 43125213 in words is "forty-three million, one hundred twenty-five thousand, two hundred thirteen".