43128341 has 2 divisors, whose sum is σ = 43128342. Its totient is φ = 43128340.

The previous prime is 43128331. The next prime is 43128343. The reversal of 43128341 is 14382134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31024900 + 12103441 = 5570^2 + 3479^2 .

It is a cyclic number.

It is not a de Polignac number, because 43128341 - 2⁶ = 43128277 is a prime.

Together with 43128343, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43128341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43128343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21564170 + 21564171.

It is an arithmetic number, because the mean of its divisors is an integer number (21564171).

Almost surely, 2^43128341 is an apocalyptic number.

It is an amenable number.

43128341 is a deficient number, since it is larger than the sum of its proper divisors (1).

43128341 is an equidigital number, since it uses as much as digits as its factorization.

43128341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 43128341 is about 6567.2171427478. The cubic root of 43128341 is about 350.6880099287.

The spelling of 43128341 in words is "forty-three million, one hundred twenty-eight thousand, three hundred forty-one".