112840581 has 12 divisors (see below), whose sum is σ = 175018272. Its totient is φ = 64480248.

The previous prime is 112840573. The next prime is 112840591. The reversal of 112840581 is 185048211.

It is a happy number.

It is not a de Polignac number, because 112840581 - 2³ = 112840573 is a prime.

It is a super-2 number, since 2×112840581² = 25465993440835122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112840591) 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, 383665 + ... + 383958.

It is an arithmetic number, because the mean of its divisors is an integer number (14584856).

Almost surely, 2^112840581 is an apocalyptic number.

It is an amenable number.

112840581 is a deficient number, since it is larger than the sum of its proper divisors (62177691).

112840581 is an equidigital number, since it uses as much as digits as its factorization.

112840581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767640 (or 767633 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 112840581 is about 10622.6447271854. The cubic root of 112840581 is about 483.2313531442.

Adding to 112840581 its reverse (185048211), we get a palindrome (297888792).

The spelling of 112840581 in words is "one hundred twelve million, eight hundred forty thousand, five hundred eighty-one".