112731 has 8 divisors (see below), whose sum is σ = 153360. Its totient is φ = 73632.

The previous prime is 112691. The next prime is 112741. The reversal of 112731 is 137211.

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

It is not a de Polignac number, because 112731 - 2⁷ = 112603 is a prime.

It is a super-2 number, since 2×112731² = 25416556722, which contains 22 as substring.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 112731.

It is not an unprimeable number, because it can be changed into a prime (112741) 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, 196 + ... + 513.

It is an arithmetic number, because the mean of its divisors is an integer number (19170).

2¹¹²⁷³¹ is an apocalyptic number.

112731 is a deficient number, since it is larger than the sum of its proper divisors (40629).

112731 is an equidigital number, since it uses as much as digits as its factorization.

112731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its digits is 42, while the sum is 15.

The square root of 112731 is about 335.7543745061. The cubic root of 112731 is about 48.3074878335.

Adding to 112731 its reverse (137211), we get a palindrome (249942).

The spelling of 112731 in words is "one hundred twelve thousand, seven hundred thirty-one".