113445644 has 36 divisors (see below), whose sum is σ = 216099576. Its totient is φ = 52086528.

The previous prime is 113445643. The next prime is 113445757. The reversal of 113445644 is 446544311.

It is a self number, because there is not a number n which added to its sum of digits gives 113445644.

It is not an unprimeable number, because it can be changed into a prime (113445643) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 191012 + ... + 191604.

It is an arithmetic number, because the mean of its divisors is an integer number (6002766).

Almost surely, 2^113445644 is an apocalyptic number.

It is an amenable number.

113445644 is a deficient number, since it is larger than the sum of its proper divisors (102653932).

113445644 is a wasteful number, since it uses less digits than its factorization.

113445644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 891 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 113445644 is about 10651.0865173465. The cubic root of 113445644 is about 484.0935263107.

Adding to 113445644 its reverse (446544311), we get a palindrome (559989955).

The spelling of 113445644 in words is "one hundred thirteen million, four hundred forty-five thousand, six hundred forty-four".