112391000 has 64 divisors (see below), whose sum is σ = 264962880. Its totient is φ = 44620800.

The previous prime is 112390987. The next prime is 112391011. The reversal of 112391000 is 193211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 112391000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166664 + ... + 167336.

It is an arithmetic number, because the mean of its divisors is an integer number (4140045).

Almost surely, 2^112391000 is an apocalyptic number.

112391000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112391000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132481440).

112391000 is an abundant number, since it is smaller than the sum of its proper divisors (152571880).

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

112391000 is a wasteful number, since it uses less digits than its factorization.

112391000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 112391000 is about 10601.4621633056. The cubic root of 112391000 is about 482.5887332668.

The spelling of 112391000 in words is "one hundred twelve million, three hundred ninety-one thousand".