2112616543 has 4 divisors (see below), whose sum is σ = 2120412448. Its totient is φ = 2104820640.

The previous prime is 2112616529. The next prime is 2112616547. The reversal of 2112616543 is 3456162112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112616543 - 2⁹ = 2112616031 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 (2112616547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3897546 + ... + 3898087.

It is an arithmetic number, because the mean of its divisors is an integer number (530103112).

Almost surely, 2^2112616543 is an apocalyptic number.

2112616543 is a deficient number, since it is larger than the sum of its proper divisors (7795905).

2112616543 is an equidigital number, since it uses as much as digits as its factorization.

2112616543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795904.

The product of its digits is 8640, while the sum is 31.

The square root of 2112616543 is about 45963.2085803417. The cubic root of 2112616543 is about 1283.1385672531.

Adding to 2112616543 its reverse (3456162112), we get a palindrome (5568778655).

The spelling of 2112616543 in words is "two billion, one hundred twelve million, six hundred sixteen thousand, five hundred forty-three".