112875821 has 4 divisors (see below), whose sum is σ = 112988700. Its totient is φ = 112762944.

The previous prime is 112875809. The next prime is 112875823. The reversal of 112875821 is 128578211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9853321 + 103022500 = 3139^2 + 10150^2 .

It is a cyclic number.

It is not a de Polignac number, because 112875821 - 2²⁶ = 45766957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112875823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54926 + ... + 56943.

It is an arithmetic number, because the mean of its divisors is an integer number (28247175).

Almost surely, 2^112875821 is an apocalyptic number.

It is an amenable number.

112875821 is a deficient number, since it is larger than the sum of its proper divisors (112879).

112875821 is a wasteful number, since it uses less digits than its factorization.

112875821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112878.

The product of its digits is 8960, while the sum is 35.

The square root of 112875821 is about 10624.3033183357. The cubic root of 112875821 is about 483.2816521303.

The spelling of 112875821 in words is "one hundred twelve million, eight hundred seventy-five thousand, eight hundred twenty-one".