113444553 has 32 divisors (see below), whose sum is σ = 166786560. Its totient is φ = 68290560.

The previous prime is 113444543. The next prime is 113444557. The reversal of 113444553 is 355444311.

It is not a de Polignac number, because 113444553 - 2⁶ = 113444489 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113444553.

It is not an unprimeable number, because it can be changed into a prime (113444557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148693 + ... + 149453.

It is an arithmetic number, because the mean of its divisors is an integer number (5212080).

Almost surely, 2^113444553 is an apocalyptic number.

It is an amenable number.

113444553 is a deficient number, since it is larger than the sum of its proper divisors (53342007).

113444553 is a wasteful number, since it uses less digits than its factorization.

113444553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897.

The product of its digits is 14400, while the sum is 30.

The square root of 113444553 is about 10651.0353017911. The cubic root of 113444553 is about 484.0919744728.

Adding to 113444553 its reverse (355444311), we get a palindrome (468888864).

The spelling of 113444553 in words is "one hundred thirteen million, four hundred forty-four thousand, five hundred fifty-three".