41265821 has 2 divisors, whose sum is σ = 41265822. Its totient is φ = 41265820.

The previous prime is 41265799. The next prime is 41265871. The reversal of 41265821 is 12856214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 19456921 = 4670^2 + 4411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41265821 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41265871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20632910 + 20632911.

It is an arithmetic number, because the mean of its divisors is an integer number (20632911).

Almost surely, 2^41265821 is an apocalyptic number.

It is an amenable number.

41265821 is a deficient number, since it is larger than the sum of its proper divisors (1).

41265821 is an equidigital number, since it uses as much as digits as its factorization.

41265821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 41265821 is about 6423.8478344369. The cubic root of 41265821 is about 345.5653295133.

The spelling of 41265821 in words is "forty-one million, two hundred sixty-five thousand, eight hundred twenty-one".