43900141 has 2 divisors, whose sum is σ = 43900142. Its totient is φ = 43900140.

The previous prime is 43900133. The next prime is 43900147. The reversal of 43900141 is 14100934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43837641 + 62500 = 6621^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 43900141 - 2³ = 43900133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43900147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21950070 + 21950071.

It is an arithmetic number, because the mean of its divisors is an integer number (21950071).

Almost surely, 2^43900141 is an apocalyptic number.

It is an amenable number.

43900141 is a deficient number, since it is larger than the sum of its proper divisors (1).

43900141 is an equidigital number, since it uses as much as digits as its factorization.

43900141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 43900141 is about 6625.7181497555. The cubic root of 43900141 is about 352.7675577083.

The spelling of 43900141 in words is "forty-three million, nine hundred thousand, one hundred forty-one".