41091649 has 2 divisors, whose sum is σ = 41091650. Its totient is φ = 41091648.

The previous prime is 41091641. The next prime is 41091679. The reversal of 41091649 is 94619014.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40551424 + 540225 = 6368^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 41091649 - 2³ = 41091641 is a prime.

It is not a weakly prime, because it can be changed into another prime (41091641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20545824 + 20545825.

It is an arithmetic number, because the mean of its divisors is an integer number (20545825).

Almost surely, 2^41091649 is an apocalyptic number.

It is an amenable number.

41091649 is a deficient number, since it is larger than the sum of its proper divisors (1).

41091649 is an equidigital number, since it uses as much as digits as its factorization.

41091649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 41091649 is about 6410.2768270957. The cubic root of 41091649 is about 345.0784642649.

The spelling of 41091649 in words is "forty-one million, ninety-one thousand, six hundred forty-nine".