41206309 has 2 divisors, whose sum is σ = 41206310. Its totient is φ = 41206308.

The previous prime is 41206289. The next prime is 41206313. The reversal of 41206309 is 90360214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36942084 + 4264225 = 6078^2 + 2065^2 .

It is a cyclic number.

It is not a de Polignac number, because 41206309 - 2⁹ = 41205797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41206339) 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, 20603154 + 20603155.

It is an arithmetic number, because the mean of its divisors is an integer number (20603155).

Almost surely, 2^41206309 is an apocalyptic number.

It is an amenable number.

41206309 is a deficient number, since it is larger than the sum of its proper divisors (1).

41206309 is an equidigital number, since it uses as much as digits as its factorization.

41206309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 41206309 is about 6419.2140484642. The cubic root of 41206309 is about 345.3991291932.

The spelling of 41206309 in words is "forty-one million, two hundred six thousand, three hundred nine".