113327181 has 24 divisors (see below), whose sum is σ = 185194464. Its totient is φ = 68681520.

The previous prime is 113327173. The next prime is 113327209. The reversal of 113327181 is 181723311.

It is a happy number.

It is not a de Polignac number, because 113327181 - 2³ = 113327173 is a prime.

It is a super-2 number, since 2×113327181² = 25686099906813522, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113327101) 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, 18526 + ... + 23871.

It is an arithmetic number, because the mean of its divisors is an integer number (7716436).

Almost surely, 2^113327181 is an apocalyptic number.

113327181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113327181 is a deficient number, since it is larger than the sum of its proper divisors (71867283).

113327181 is an equidigital number, since it uses as much as digits as its factorization.

113327181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42423 (or 42411 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 113327181 is about 10645.5239889824. The cubic root of 113327181 is about 483.9249664550.

The spelling of 113327181 in words is "one hundred thirteen million, three hundred twenty-seven thousand, one hundred eighty-one".