112145543 has 4 divisors (see below), whose sum is σ = 118047960. Its totient is φ = 106243128.

The previous prime is 112145531. The next prime is 112145573. The reversal of 112145543 is 345541211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345541211 = 983 ⋅351517.

It is a cyclic number.

It is not a de Polignac number, because 112145543 - 2¹⁴ = 112129159 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 (112145503) 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, 2951180 + ... + 2951217.

It is an arithmetic number, because the mean of its divisors is an integer number (29511990).

Almost surely, 2^112145543 is an apocalyptic number.

112145543 is a deficient number, since it is larger than the sum of its proper divisors (5902417).

112145543 is an equidigital number, since it uses as much as digits as its factorization.

112145543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902416.

The product of its digits is 2400, while the sum is 26.

The square root of 112145543 is about 10589.8792722108. The cubic root of 112145543 is about 482.2371596805.

Adding to 112145543 its reverse (345541211), we get a palindrome (457686754).

It can be divided in two parts, 1121 and 45543, that added together give a palindrome (46664).

The spelling of 112145543 in words is "one hundred twelve million, one hundred forty-five thousand, five hundred forty-three".