112509881 has 8 divisors (see below), whose sum is σ = 126697728. Its totient is φ = 98982000.

The previous prime is 112509877. The next prime is 112509883. The reversal of 112509881 is 188905211.

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

It is a cyclic number.

It is not a de Polignac number, because 112509881 - 2² = 112509877 is a prime.

It is a super-2 number, since 2×112509881² = 25316946645268322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112509883) 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, 164630 + ... + 165311.

It is an arithmetic number, because the mean of its divisors is an integer number (15837216).

Almost surely, 2^112509881 is an apocalyptic number.

112509881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112509881 is a deficient number, since it is larger than the sum of its proper divisors (14187847).

112509881 is a wasteful number, since it uses less digits than its factorization.

112509881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329983.

The product of its (nonzero) digits is 5760, while the sum is 35.

The square root of 112509881 is about 10607.0675023778. The cubic root of 112509881 is about 482.7588252233.

The spelling of 112509881 in words is "one hundred twelve million, five hundred nine thousand, eight hundred eighty-one".