636373141 has 2 divisors, whose sum is σ = 636373142. Its totient is φ = 636373140.

The previous prime is 636373139. The next prime is 636373147. The reversal of 636373141 is 141373636.

636373141 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., 328370641 + 308002500 = 18121^2 + 17550^2 .

It is a cyclic number.

It is not a de Polignac number, because 636373141 - 2¹ = 636373139 is a prime.

Together with 636373139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 636373097 and 636373106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (636373147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318186570 + 318186571.

It is an arithmetic number, because the mean of its divisors is an integer number (318186571).

Almost surely, 2^636373141 is an apocalyptic number.

It is an amenable number.

636373141 is a deficient number, since it is larger than the sum of its proper divisors (1).

636373141 is an equidigital number, since it uses as much as digits as its factorization.

636373141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 636373141 is about 25226.4373425975. The cubic root of 636373141 is about 860.1429098185.

The spelling of 636373141 in words is "six hundred thirty-six million, three hundred seventy-three thousand, one hundred forty-one".