43125143 has 4 divisors (see below), whose sum is σ = 43139880. Its totient is φ = 43110408.

The previous prime is 43125139. The next prime is 43125149. The reversal of 43125143 is 34152134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43125143 - 2² = 43125139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43125149) 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 3 ways as a sum of consecutive naturals, for example, 1328 + ... + 9381.

It is an arithmetic number, because the mean of its divisors is an integer number (10784970).

Almost surely, 2^43125143 is an apocalyptic number.

43125143 is a deficient number, since it is larger than the sum of its proper divisors (14737).

43125143 is a wasteful number, since it uses less digits than its factorization.

43125143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14736.

The product of its digits is 1440, while the sum is 23.

The square root of 43125143 is about 6566.9736561067. The cubic root of 43125143 is about 350.6793417849.

Adding to 43125143 its reverse (34152134), we get a palindrome (77277277).

The spelling of 43125143 in words is "forty-three million, one hundred twenty-five thousand, one hundred forty-three".