636536041 has 2 divisors, whose sum is σ = 636536042. Its totient is φ = 636536040.

The previous prime is 636536039. The next prime is 636536053. The reversal of 636536041 is 140635636.

636536041 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., 630210816 + 6325225 = 25104^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 636536041 - 2¹ = 636536039 is a prime.

Together with 636536039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 636535988 and 636536006.

It is not a weakly prime, because it can be changed into another prime (636536011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318268020 + 318268021.

It is an arithmetic number, because the mean of its divisors is an integer number (318268021).

Almost surely, 2^636536041 is an apocalyptic number.

It is an amenable number.

636536041 is a deficient number, since it is larger than the sum of its proper divisors (1).

636536041 is an equidigital number, since it uses as much as digits as its factorization.

636536041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 636536041 is about 25229.6658915650. The cubic root of 636536041 is about 860.2162972264.

The spelling of 636536041 in words is "six hundred thirty-six million, five hundred thirty-six thousand, forty-one".