43213141 has 2 divisors, whose sum is σ = 43213142. Its totient is φ = 43213140.

The previous prime is 43213109. The next prime is 43213171. The reversal of 43213141 is 14131234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39112516 + 4100625 = 6254^2 + 2025^2 .

It is a cyclic number.

It is not a de Polignac number, because 43213141 - 2⁵ = 43213109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43213171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21606570 + 21606571.

It is an arithmetic number, because the mean of its divisors is an integer number (21606571).

Almost surely, 2^43213141 is an apocalyptic number.

It is an amenable number.

43213141 is a deficient number, since it is larger than the sum of its proper divisors (1).

43213141 is an equidigital number, since it uses as much as digits as its factorization.

43213141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 43213141 is about 6573.6702837912. The cubic root of 43213141 is about 350.9177032352.

Adding to 43213141 its reverse (14131234), we get a palindrome (57344375).

The spelling of 43213141 in words is "forty-three million, two hundred thirteen thousand, one hundred forty-one".