112291287 has 8 divisors (see below), whose sum is σ = 150251904. Its totient is φ = 74595768.

The previous prime is 112291279. The next prime is 112291303. The reversal of 112291287 is 782192211.

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

It is not a de Polignac number, because 112291287 - 2³ = 112291279 is a prime.

It is a super-2 number, since 2×112291287² = 25218666272232738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112291217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65283 + ... + 66980.

It is an arithmetic number, because the mean of its divisors is an integer number (18781488).

Almost surely, 2^112291287 is an apocalyptic number.

112291287 is a deficient number, since it is larger than the sum of its proper divisors (37960617).

112291287 is a wasteful number, since it uses less digits than its factorization.

112291287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132549.

The product of its digits is 4032, while the sum is 33.

The square root of 112291287 is about 10596.7583250728. The cubic root of 112291287 is about 482.4459738877.

The spelling of 112291287 in words is "one hundred twelve million, two hundred ninety-one thousand, two hundred eighty-seven".