112512143 has 4 divisors (see below), whose sum is σ = 113672160. Its totient is φ = 111352128.

The previous prime is 112512139. The next prime is 112512151. The reversal of 112512143 is 341215211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341215211 = 17 ⋅20071483.

It is a cyclic number.

It is not a de Polignac number, because 112512143 - 2² = 112512139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112512173) 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, 579863 + ... + 580056.

It is an arithmetic number, because the mean of its divisors is an integer number (28418040).

Almost surely, 2^112512143 is an apocalyptic number.

112512143 is a deficient number, since it is larger than the sum of its proper divisors (1160017).

112512143 is an equidigital number, since it uses as much as digits as its factorization.

112512143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160016.

The product of its digits is 240, while the sum is 20.

The square root of 112512143 is about 10607.1741288620. The cubic root of 112512143 is about 482.7620604744.

Adding to 112512143 its reverse (341215211), we get a palindrome (453727354).

The spelling of 112512143 in words is "one hundred twelve million, five hundred twelve thousand, one hundred forty-three".