43212141 has 12 divisors (see below), whose sum is σ = 71334432. Its totient is φ = 24692616.

The previous prime is 43212139. The next prime is 43212151. The reversal of 43212141 is 14121234.

It is not a de Polignac number, because 43212141 - 2¹ = 43212139 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43212151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342891 + ... + 343016.

It is an arithmetic number, because the mean of its divisors is an integer number (5944536).

Almost surely, 2^43212141 is an apocalyptic number.

It is an amenable number.

43212141 is a deficient number, since it is larger than the sum of its proper divisors (28122291).

43212141 is a wasteful number, since it uses less digits than its factorization.

43212141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685920 (or 685917 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 43212141 is about 6573.5942223414. The cubic root of 43212141 is about 350.9149963394.

Adding to 43212141 its reverse (14121234), we get a palindrome (57333375).

The spelling of 43212141 in words is "forty-three million, two hundred twelve thousand, one hundred forty-one".