113565803 has 24 divisors (see below), whose sum is σ = 129651840. Its totient is φ = 99290880.

The previous prime is 113565799. The next prime is 113565833. The reversal of 113565803 is 308565311.

It is not a de Polignac number, because 113565803 - 2² = 113565799 is a prime.

It is a super-2 number, since 2×113565803² = 25794383222069618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113565803.

It is not an unprimeable number, because it can be changed into a prime (113565833) 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 23 ways as a sum of consecutive naturals, for example, 277463 + ... + 277871.

It is an arithmetic number, because the mean of its divisors is an integer number (5402160).

Almost surely, 2^113565803 is an apocalyptic number.

113565803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113565803 is a deficient number, since it is larger than the sum of its proper divisors (16086037).

113565803 is a wasteful number, since it uses less digits than its factorization.

113565803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 113565803 is about 10656.7257166542. The cubic root of 113565803 is about 484.2643795559.

The spelling of 113565803 in words is "one hundred thirteen million, five hundred sixty-five thousand, eight hundred three".