636130601 has 4 divisors (see below), whose sum is σ = 637437312. Its totient is φ = 634823892.

The previous prime is 636130591. The next prime is 636130613. The reversal of 636130601 is 106031636.

636130601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-636130601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636130801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652625 + ... + 653598.

It is an arithmetic number, because the mean of its divisors is an integer number (159359328).

Almost surely, 2^636130601 is an apocalyptic number.

It is an amenable number.

636130601 is a deficient number, since it is larger than the sum of its proper divisors (1306711).

636130601 is a wasteful number, since it uses less digits than its factorization.

636130601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306710.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 636130601 is about 25221.6296261760. The cubic root of 636130601 is about 860.0336209138.

The spelling of 636130601 in words is "six hundred thirty-six million, one hundred thirty thousand, six hundred one".