2104006543 has 4 divisors (see below), whose sum is σ = 2113036848. Its totient is φ = 2094976240.

The previous prime is 2104006537. The next prime is 2104006573. The reversal of 2104006543 is 3456004012.

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-2104006543 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 (2104006523) 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, 4514803 + ... + 4515268.

It is an arithmetic number, because the mean of its divisors is an integer number (528259212).

Almost surely, 2^2104006543 is an apocalyptic number.

2104006543 is a deficient number, since it is larger than the sum of its proper divisors (9030305).

2104006543 is an equidigital number, since it uses as much as digits as its factorization.

2104006543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9030304.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2104006543 is about 45869.4510867527. The cubic root of 2104006543 is about 1281.3930437225.

The spelling of 2104006543 in words is "two billion, one hundred four million, six thousand, five hundred forty-three".