2134544543 has 4 divisors (see below), whose sum is σ = 2141278440. Its totient is φ = 2127810648.

The previous prime is 2134544519. The next prime is 2134544551. The reversal of 2134544543 is 3454454312.

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 2134544543 - 2⁶ = 2134544479 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 (2134544593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366473 + ... + 3367106.

It is an arithmetic number, because the mean of its divisors is an integer number (535319610).

Almost surely, 2^2134544543 is an apocalyptic number.

2134544543 is a deficient number, since it is larger than the sum of its proper divisors (6733897).

2134544543 is an equidigital number, since it uses as much as digits as its factorization.

2134544543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733896.

The product of its digits is 115200, while the sum is 35.

The square root of 2134544543 is about 46201.1314038953. The cubic root of 2134544543 is about 1287.5627604810.

Adding to 2134544543 its reverse (3454454312), we get a palindrome (5588998855).

The spelling of 2134544543 in words is "two billion, one hundred thirty-four million, five hundred forty-four thousand, five hundred forty-three".