241599842509 has 2 divisors, whose sum is σ = 241599842510. Its totient is φ = 241599842508.

The previous prime is 241599842503. The next prime is 241599842543. The reversal of 241599842509 is 905248995142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214481986884 + 27117855625 = 463122^2 + 164675^2 .

It is a cyclic number.

It is not a de Polignac number, because 241599842509 - 2²⁵ = 241566288077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241599842503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120799921254 + 120799921255.

It is an arithmetic number, because the mean of its divisors is an integer number (120799921255).

Almost surely, 2^241599842509 is an apocalyptic number.

It is an amenable number.

241599842509 is a deficient number, since it is larger than the sum of its proper divisors (1).

241599842509 is an equidigital number, since it uses as much as digits as its factorization.

241599842509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 241599842509 in words is "two hundred forty-one billion, five hundred ninety-nine million, eight hundred forty-two thousand, five hundred nine".