41445641 has 2 divisors, whose sum is σ = 41445642. Its totient is φ = 41445640.

The previous prime is 41445617. The next prime is 41445647. The reversal of 41445641 is 14654414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29474041 + 11971600 = 5429^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 41445641 - 2⁶ = 41445577 is a prime.

It is not a weakly prime, because it can be changed into another prime (41445647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20722820 + 20722821.

It is an arithmetic number, because the mean of its divisors is an integer number (20722821).

Almost surely, 2^41445641 is an apocalyptic number.

It is an amenable number.

41445641 is a deficient number, since it is larger than the sum of its proper divisors (1).

41445641 is an equidigital number, since it uses as much as digits as its factorization.

41445641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 29.

The square root of 41445641 is about 6437.8289042192. The cubic root of 41445641 is about 346.0665475037.

The spelling of 41445641 in words is "forty-one million, four hundred forty-five thousand, six hundred forty-one".