1113638636 has 24 divisors (see below), whose sum is σ = 2136846096. Its totient is φ = 503625920.

The previous prime is 1113638627. The next prime is 1113638653. The reversal of 1113638636 is 6368363111.

It is a self number, because there is not a number n which added to its sum of digits gives 1113638636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55571 + ... + 72906.

It is an arithmetic number, because the mean of its divisors is an integer number (89035254).

Almost surely, 2^1113638636 is an apocalyptic number.

It is an amenable number.

1113638636 is a deficient number, since it is larger than the sum of its proper divisors (1023207460).

1113638636 is a wasteful number, since it uses less digits than its factorization.

1113638636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128689 (or 128687 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 1113638636 is about 33371.2246703653. The cubic root of 1113638636 is about 1036.5289346465.

The spelling of 1113638636 in words is "one billion, one hundred thirteen million, six hundred thirty-eight thousand, six hundred thirty-six".