113155803 has 12 divisors (see below), whose sum is σ = 163545720. Its totient is φ = 75391776.

The previous prime is 113155789. The next prime is 113155807. The reversal of 113155803 is 308551311.

It is not a de Polignac number, because 113155803 - 2⁴ = 113155787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113155807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19575 + ... + 24687.

It is an arithmetic number, because the mean of its divisors is an integer number (13628810).

Almost surely, 2^113155803 is an apocalyptic number.

113155803 is a deficient number, since it is larger than the sum of its proper divisors (50389917).

113155803 is a wasteful number, since it uses less digits than its factorization.

113155803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578 (or 7575 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 113155803 is about 10637.4716450856. The cubic root of 113155803 is about 483.6809063428.

The spelling of 113155803 in words is "one hundred thirteen million, one hundred fifty-five thousand, eight hundred three".