1112287985 has 8 divisors (see below), whose sum is σ = 1413260136. Its totient is φ = 837487360.

The previous prime is 1112287973. The next prime is 1112288003. The reversal of 1112287985 is 5897822111.

It can be written as a sum of positive squares in 4 ways, for example, as 314281984 + 798006001 = 17728^2 + 28249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112287985 - 2³⁰ = 38546161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6542786 + ... + 6542955.

It is an arithmetic number, because the mean of its divisors is an integer number (176657517).

Almost surely, 2^1112287985 is an apocalyptic number.

It is an amenable number.

1112287985 is a deficient number, since it is larger than the sum of its proper divisors (300972151).

1112287985 is a wasteful number, since it uses less digits than its factorization.

1112287985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13085763.

The product of its digits is 80640, while the sum is 44.

The square root of 1112287985 is about 33350.9817696571. The cubic root of 1112287985 is about 1036.1097216990.

The spelling of 1112287985 in words is "one billion, one hundred twelve million, two hundred eighty-seven thousand, nine hundred eighty-five".