241798309 has 2 divisors, whose sum is σ = 241798310. Its totient is φ = 241798308.

The previous prime is 241798307. The next prime is 241798363. The reversal of 241798309 is 903897142.

241798309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233417284 + 8381025 = 15278^2 + 2895^2 .

It is a cyclic number.

It is not a de Polignac number, because 241798309 - 2¹ = 241798307 is a prime.

Together with 241798307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241798301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120899154 + 120899155.

It is an arithmetic number, because the mean of its divisors is an integer number (120899155).

Almost surely, 2^241798309 is an apocalyptic number.

It is an amenable number.

241798309 is a deficient number, since it is larger than the sum of its proper divisors (1).

241798309 is an equidigital number, since it uses as much as digits as its factorization.

241798309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 241798309 is about 15549.8652405736. The cubic root of 241798309 is about 622.9947972190.

The spelling of 241798309 in words is "two hundred forty-one million, seven hundred ninety-eight thousand, three hundred nine".