113404563 has 16 divisors (see below), whose sum is σ = 168246400. Its totient is φ = 75495240.

The previous prime is 113404547. The next prime is 113404607. The reversal of 113404563 is 365404311.

It is not a de Polignac number, because 113404563 - 2⁴ = 113404547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113404163) 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 15 ways as a sum of consecutive naturals, for example, 19308 + ... + 24486.

It is an arithmetic number, because the mean of its divisors is an integer number (10515400).

Almost surely, 2^113404563 is an apocalyptic number.

113404563 is a deficient number, since it is larger than the sum of its proper divisors (54841837).

113404563 is an equidigital number, since it uses as much as digits as its factorization.

113404563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999 (or 5993 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 113404563 is about 10649.1578540277. The cubic root of 113404563 is about 484.0350858498.

Adding to 113404563 its reverse (365404311), we get a palindrome (478808874).

The spelling of 113404563 in words is "one hundred thirteen million, four hundred four thousand, five hundred sixty-three".