112181616 has 30 divisors (see below), whose sum is σ = 313953120. Its totient is φ = 37393824.

The previous prime is 112181611. The next prime is 112181639. The reversal of 112181616 is 616181211.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 112181616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112181611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 389376 + ... + 389663.

It is an arithmetic number, because the mean of its divisors is an integer number (10465104).

Almost surely, 2^112181616 is an apocalyptic number.

112181616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

112181616 is an abundant number, since it is smaller than the sum of its proper divisors (201771504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112181616 is a wasteful number, since it uses less digits than its factorization.

112181616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779053 (or 779044 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 112181616 is about 10591.5823180486. The cubic root of 112181616 is about 482.2888599851.

The spelling of 112181616 in words is "one hundred twelve million, one hundred eighty-one thousand, six hundred sixteen".