636066241 has 2 divisors, whose sum is σ = 636066242. Its totient is φ = 636066240.

The previous prime is 636066227. The next prime is 636066281. The reversal of 636066241 is 142660636.

636066241 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., 496353841 + 139712400 = 22279^2 + 11820^2 .

It is a cyclic number.

It is not a de Polignac number, because 636066241 - 2¹¹ = 636064193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 636066197 and 636066206.

It is not a weakly prime, because it can be changed into another prime (636066281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318033120 + 318033121.

It is an arithmetic number, because the mean of its divisors is an integer number (318033121).

Almost surely, 2^636066241 is an apocalyptic number.

It is an amenable number.

636066241 is a deficient number, since it is larger than the sum of its proper divisors (1).

636066241 is an equidigital number, since it uses as much as digits as its factorization.

636066241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 636066241 is about 25220.3537048948. The cubic root of 636066241 is about 860.0046155332.

The spelling of 636066241 in words is "six hundred thirty-six million, sixty-six thousand, two hundred forty-one".