113638636 has 6 divisors (see below), whose sum is σ = 198867620. Its totient is φ = 56819316.

The previous prime is 113638631. The next prime is 113638649. The reversal of 113638636 is 636836311.

It is a junction number, because it is equal to n+sod(n) for n = 113638595 and 113638604.

It is not an unprimeable number, because it can be changed into a prime (113638631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14204826 + ... + 14204833.

Almost surely, 2^113638636 is an apocalyptic number.

It is an amenable number.

113638636 is a deficient number, since it is larger than the sum of its proper divisors (85228984).

113638636 is a wasteful number, since it uses less digits than its factorization.

113638636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28409663 (or 28409661 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 113638636 is about 10660.1424005498. The cubic root of 113638636 is about 484.3678816352.

The spelling of 113638636 in words is "one hundred thirteen million, six hundred thirty-eight thousand, six hundred thirty-six".