112830781 has 12 divisors (see below), whose sum is σ = 132838272. Its totient is φ = 95543448.

The previous prime is 112830779. The next prime is 112830787. The reversal of 112830781 is 187038211.

It is a happy number.

It is not a de Polignac number, because 112830781 - 2¹ = 112830779 is a prime.

It is a super-2 number, since 2×112830781² = 25461570282139922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112830787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9805 + ... + 17938.

It is an arithmetic number, because the mean of its divisors is an integer number (11069856).

Almost surely, 2^112830781 is an apocalyptic number.

It is an amenable number.

112830781 is a deficient number, since it is larger than the sum of its proper divisors (20007491).

112830781 is an equidigital number, since it uses as much as digits as its factorization.

112830781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27840 (or 27833 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 112830781 is about 10622.1834384462. The cubic root of 112830781 is about 483.2173634833.

Adding to 112830781 its reverse (187038211), we get a palindrome (299868992).

The spelling of 112830781 in words is "one hundred twelve million, eight hundred thirty thousand, seven hundred eighty-one".