113186 has 8 divisors (see below), whose sum is σ = 179820. Its totient is φ = 53248.

The previous prime is 113177. The next prime is 113189. The reversal of 113186 is 681311.

It can be written as a sum of positive squares in 2 ways, for example, as 112225 + 961 = 335^2 + 31^2 .

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

It is a super-2 number, since 2×113186² = 25622141192, which contains 22 as substring.

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

113186 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631 + ... + 1698.

2¹¹³¹⁸⁶ is an apocalyptic number.

113186 is a deficient number, since it is larger than the sum of its proper divisors (66634).

113186 is a wasteful number, since it uses less digits than its factorization.

113186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348.

The product of its digits is 144, while the sum is 20.

The square root of 113186 is about 336.4312708415. The cubic root of 113186 is about 48.3723927890.

Adding to 113186 its reverse (681311), we get a palindrome (794497).

The spelling of 113186 in words is "one hundred thirteen thousand, one hundred eighty-six".