112142187 has 6 divisors (see below), whose sum is σ = 161983172. Its totient is φ = 74761452.

The previous prime is 112142179. The next prime is 112142197. The reversal of 112142187 is 781241211.

It is not a de Polignac number, because 112142187 - 2³ = 112142179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112142187.

It is not an unprimeable number, because it can be changed into a prime (112142137) 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 5 ways as a sum of consecutive naturals, for example, 6230113 + ... + 6230130.

Almost surely, 2^112142187 is an apocalyptic number.

112142187 is a deficient number, since it is larger than the sum of its proper divisors (49840985).

112142187 is a wasteful number, since it uses less digits than its factorization.

112142187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12460249 (or 12460246 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 112142187 is about 10589.7208178497. The cubic root of 112142187 is about 482.2323492528.

Adding to 112142187 its reverse (781241211), we get a palindrome (893383398).

The spelling of 112142187 in words is "one hundred twelve million, one hundred forty-two thousand, one hundred eighty-seven".