41564009 has 2 divisors, whose sum is σ = 41564010. Its totient is φ = 41564008.

The previous prime is 41563981. The next prime is 41564021. The reversal of 41564009 is 90046514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30858025 + 10705984 = 5555^2 + 3272^2 .

It is a cyclic number.

It is not a de Polignac number, because 41564009 - 2¹² = 41559913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41564069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20782004 + 20782005.

It is an arithmetic number, because the mean of its divisors is an integer number (20782005).

Almost surely, 2^41564009 is an apocalyptic number.

It is an amenable number.

41564009 is a deficient number, since it is larger than the sum of its proper divisors (1).

41564009 is an equidigital number, since it uses as much as digits as its factorization.

41564009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 41564009 is about 6447.0155110718. The cubic root of 41564009 is about 346.3956876267.

The spelling of 41564009 in words is "forty-one million, five hundred sixty-four thousand, nine".