113005644 has 12 divisors (see below), whose sum is σ = 263679864. Its totient is φ = 37668544.

The previous prime is 113005637. The next prime is 113005649. The reversal of 113005644 is 446500311.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (113005649) 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, 4708557 + ... + 4708580.

It is an arithmetic number, because the mean of its divisors is an integer number (21973322).

Almost surely, 2^113005644 is an apocalyptic number.

It is an amenable number.

113005644 is an abundant number, since it is smaller than the sum of its proper divisors (150674220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113005644 is a wasteful number, since it uses less digits than its factorization.

113005644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9417144 (or 9417142 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 113005644 is about 10630.4112808489. The cubic root of 113005644 is about 483.4668616672.

Adding to 113005644 its reverse (446500311), we get a palindrome (559505955).

The spelling of 113005644 in words is "one hundred thirteen million, five thousand, six hundred forty-four".