636201013 has 8 divisors (see below), whose sum is σ = 769856832. Its totient is φ = 513237696.

The previous prime is 636200993. The next prime is 636201017. The reversal of 636201013 is 310102636.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 636201013 - 2⁹ = 636200501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636201017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672995 + ... + 2673232.

It is an arithmetic number, because the mean of its divisors is an integer number (96232104).

Almost surely, 2^636201013 is an apocalyptic number.

It is an amenable number.

636201013 is a deficient number, since it is larger than the sum of its proper divisors (133655819).

636201013 is a wasteful number, since it uses less digits than its factorization.

636201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346251.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 636201013 is about 25223.0254529468. The cubic root of 636201013 is about 860.0653515328.

Adding to 636201013 its reverse (310102636), we get a palindrome (946303649).

The spelling of 636201013 in words is "six hundred thirty-six million, two hundred one thousand, thirteen".