113181 has 8 divisors (see below), whose sum is σ = 155904. Its totient is φ = 72960.

The previous prime is 113177. The next prime is 113189. The reversal of 113181 is 181311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113181 - 2² = 113177 is a prime.

It is a super-2 number, since 2×113181² = 25619877522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113181.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 113181.

It is not an unprimeable number, because it can be changed into a prime (113189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516 + ... + 701.

It is an arithmetic number, because the mean of its divisors is an integer number (19488).

2¹¹³¹⁸¹ is an apocalyptic number.

It is an amenable number.

113181 is a deficient number, since it is larger than the sum of its proper divisors (42723).

113181 is a wasteful number, since it uses less digits than its factorization.

113181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251.

The product of its digits is 24, while the sum is 15.

The square root of 113181 is about 336.4238398211. The cubic root of 113181 is about 48.3716804939.

Adding to 113181 its reverse (181311), we get a palindrome (294492).

The spelling of 113181 in words is "one hundred thirteen thousand, one hundred eighty-one".