113731636 has 12 divisors (see below), whose sum is σ = 204409828. Its totient is φ = 55328832.

The previous prime is 113731621. The next prime is 113731637. The reversal of 113731636 is 636137311.

It can be written as a sum of positive squares in 2 ways, for example, as 97891236 + 15840400 = 9894^2 + 3980^2 .

It is a junction number, because it is equal to n+sod(n) for n = 113731598 and 113731607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113731637) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 384081 + ... + 384376.

Almost surely, 2^113731636 is an apocalyptic number.

It is an amenable number.

113731636 is a deficient number, since it is larger than the sum of its proper divisors (90678192).

113731636 is a wasteful number, since it uses less digits than its factorization.

113731636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768498 (or 768496 counting only the distinct ones).

The product of its digits is 6804, while the sum is 31.

The square root of 113731636 is about 10664.5035515021. The cubic root of 113731636 is about 484.4999785224.

Adding to 113731636 its reverse (636137311), we get a palindrome (749868947).

The spelling of 113731636 in words is "one hundred thirteen million, seven hundred thirty-one thousand, six hundred thirty-six".