112912878 has 48 divisors (see below), whose sum is σ = 258395760. Its totient is φ = 32692224.

The previous prime is 112912859. The next prime is 112912879. The reversal of 112912878 is 878219211.

112912878 is a nontrivial binomial coefficient, being equal to C(15028, 2).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112912879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20038 + ... + 25046.

It is an arithmetic number, because the mean of its divisors is an integer number (5383245).

Almost surely, 2^112912878 is an apocalyptic number.

112912878 is the 15027-th triangular number and also the 7514-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112912878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129197880).

112912878 is an abundant number, since it is smaller than the sum of its proper divisors (145482882).

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

112912878 is a wasteful number, since it uses less digits than its factorization.

112912878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061 (or 5044 counting only the distinct ones).

The product of its digits is 16128, while the sum is 39.

The square root of 112912878 is about 10626.0471483991. The cubic root of 112912878 is about 483.3345332775.

The spelling of 112912878 in words is "one hundred twelve million, nine hundred twelve thousand, eight hundred seventy-eight".