2182126543 has 4 divisors (see below), whose sum is σ = 2182596408. Its totient is φ = 2181656680.

The previous prime is 2182126537. The next prime is 2182126553. The reversal of 2182126543 is 3456212812.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2182126543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2182126499 and 2182126508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182126553) 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, 227896 + ... + 237277.

It is an arithmetic number, because the mean of its divisors is an integer number (545649102).

Almost surely, 2^2182126543 is an apocalyptic number.

2182126543 is a deficient number, since it is larger than the sum of its proper divisors (469865).

2182126543 is an equidigital number, since it uses as much as digits as its factorization.

2182126543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469864.

The product of its digits is 23040, while the sum is 34.

The square root of 2182126543 is about 46713.2373423209. The cubic root of 2182126543 is about 1297.0597341781.

The spelling of 2182126543 in words is "two billion, one hundred eighty-two million, one hundred twenty-six thousand, five hundred forty-three".