241787256210209 has 2 divisors, whose sum is σ = 241787256210210. Its totient is φ = 241787256210208.

The previous prime is 241787256210197. The next prime is 241787256210277. The reversal of 241787256210209 is 902012652787142.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229234740250000 + 12552515960209 = 15140500^2 + 3542953^2 .

It is a cyclic number.

It is not a de Polignac number, because 241787256210209 - 2⁴⁰ = 240687744582433 is a prime.

It is a super-2 number, since 2×241787256210209² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (241787256212209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120893628105104 + 120893628105105.

It is an arithmetic number, because the mean of its divisors is an integer number (120893628105105).

Almost surely, 2^{241787256210209} is an apocalyptic number.

It is an amenable number.

241787256210209 is a deficient number, since it is larger than the sum of its proper divisors (1).

241787256210209 is an equidigital number, since it uses as much as digits as its factorization.

241787256210209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 241787256210209 in words is "two hundred forty-one trillion, seven hundred eighty-seven billion, two hundred fifty-six million, two hundred ten thousand, two hundred nine".