41989109 has 2 divisors, whose sum is σ = 41989110. Its totient is φ = 41989108.

The previous prime is 41989093. The next prime is 41989151. The reversal of 41989109 is 90198914.

41989109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35343025 + 6646084 = 5945^2 + 2578^2 .

It is a cyclic number.

It is not a de Polignac number, because 41989109 - 2⁴ = 41989093 is a prime.

It is a super-2 number, since 2×41989109² = 3526170549227762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41989169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20994554 + 20994555.

It is an arithmetic number, because the mean of its divisors is an integer number (20994555).

Almost surely, 2^41989109 is an apocalyptic number.

It is an amenable number.

41989109 is a deficient number, since it is larger than the sum of its proper divisors (1).

41989109 is an equidigital number, since it uses as much as digits as its factorization.

41989109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 41989109 is about 6479.9003850368. The cubic root of 41989109 is about 347.5726163308.

The spelling of 41989109 in words is "forty-one million, nine hundred eighty-nine thousand, one hundred nine".