41321309 has 2 divisors, whose sum is σ = 41321310. Its totient is φ = 41321308.

The previous prime is 41321297. The next prime is 41321327. The reversal of 41321309 is 90312314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33895684 + 7425625 = 5822^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 41321309 - 2²⁰ = 40272733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41321389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20660654 + 20660655.

It is an arithmetic number, because the mean of its divisors is an integer number (20660655).

Almost surely, 2^41321309 is an apocalyptic number.

It is an amenable number.

41321309 is a deficient number, since it is larger than the sum of its proper divisors (1).

41321309 is an equidigital number, since it uses as much as digits as its factorization.

41321309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 41321309 is about 6428.1652903453. The cubic root of 41321309 is about 345.7201480413.

The spelling of 41321309 in words is "forty-one million, three hundred twenty-one thousand, three hundred nine".