113443636 has 24 divisors (see below), whose sum is σ = 207829440. Its totient is φ = 54079872.

The previous prime is 113443609. The next prime is 113443651. The reversal of 113443636 is 636344311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 113443598 and 113443607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29175 + ... + 32833.

It is an arithmetic number, because the mean of its divisors is an integer number (8659560).

Almost surely, 2^113443636 is an apocalyptic number.

It is an amenable number.

113443636 is a deficient number, since it is larger than the sum of its proper divisors (94385804).

113443636 is a wasteful number, since it uses less digits than its factorization.

113443636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023 (or 4021 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 113443636 is about 10650.9922542456. The cubic root of 113443636 is about 484.0906701248.

Adding to 113443636 its reverse (636344311), we get a palindrome (749787947).

The spelling of 113443636 in words is "one hundred thirteen million, four hundred forty-three thousand, six hundred thirty-six".