2162344543 has 4 divisors (see below), whose sum is σ = 2162888728. Its totient is φ = 2161800360.

The previous prime is 2162344477. The next prime is 2162344559. The reversal of 2162344543 is 3454432612.

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 2162344543 - 2⁹ = 2162344031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2162344499 and 2162344508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162344573) 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, 266088 + ... + 274093.

It is an arithmetic number, because the mean of its divisors is an integer number (540722182).

Almost surely, 2^2162344543 is an apocalyptic number.

2162344543 is a deficient number, since it is larger than the sum of its proper divisors (544185).

2162344543 is an equidigital number, since it uses as much as digits as its factorization.

2162344543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544184.

The product of its digits is 69120, while the sum is 34.

The square root of 2162344543 is about 46501.0165802856. The cubic root of 2162344543 is about 1293.1283453432.

It can be divided in two parts, 21623 and 44543, that added together give a palindrome (66166).

The spelling of 2162344543 in words is "two billion, one hundred sixty-two million, three hundred forty-four thousand, five hundred forty-three".