112287989 has 4 divisors (see below), whose sum is σ = 122496000. Its totient is φ = 102079980.

The previous prime is 112287977. The next prime is 112287997. The reversal of 112287989 is 989782211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112287989 - 2²⁴ = 95510773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112287919) 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, 5103989 + ... + 5104010.

It is an arithmetic number, because the mean of its divisors is an integer number (30624000).

Almost surely, 2^112287989 is an apocalyptic number.

It is an amenable number.

112287989 is a deficient number, since it is larger than the sum of its proper divisors (10208011).

112287989 is a wasteful number, since it uses less digits than its factorization.

112287989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10208010.

The product of its digits is 145152, while the sum is 47.

The square root of 112287989 is about 10596.6027103030. The cubic root of 112287989 is about 482.4412506883.

The spelling of 112287989 in words is "one hundred twelve million, two hundred eighty-seven thousand, nine hundred eighty-nine".