1112287 has 4 divisors (see below), whose sum is σ = 1213416. Its totient is φ = 1011160.

The previous prime is 1112273. The next prime is 1112291. The reversal of 1112287 is 7822111.

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

It is a cyclic number.

It is not a de Polignac number, because 1112287 - 2⁷ = 1112159 is a prime.

It is a pancake number, because a pancake can be divided into 1112287 parts by 1491 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50548 + ... + 50569.

It is an arithmetic number, because the mean of its divisors is an integer number (303354).

2^1112287 is an apocalyptic number.

1112287 is a deficient number, since it is larger than the sum of its proper divisors (101129).

1112287 is a wasteful number, since it uses less digits than its factorization.

1112287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101128.

The product of its digits is 224, while the sum is 22.

The square root of 1112287 is about 1054.6501789693. The cubic root of 1112287 is about 103.6109415852.

Adding to 1112287 its reverse (7822111), we get a palindrome (8934398).

The spelling of 1112287 in words is "one million, one hundred twelve thousand, two hundred eighty-seven".