2105544005 has 8 divisors (see below), whose sum is σ = 2545941024. Its totient is φ = 1671576400.

The previous prime is 2105543987. The next prime is 2105544017. The reversal of 2105544005 is 5004455012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2105544005 - 2¹⁶ = 2105478469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606631 + ... + 1607940.

It is an arithmetic number, because the mean of its divisors is an integer number (318242628).

Almost surely, 2^2105544005 is an apocalyptic number.

It is an amenable number.

2105544005 is a deficient number, since it is larger than the sum of its proper divisors (440397019).

2105544005 is a wasteful number, since it uses less digits than its factorization.

2105544005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214707.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2105544005 is about 45886.2071324271. The cubic root of 2105544005 is about 1281.7050854386.

Adding to 2105544005 its reverse (5004455012), we get a palindrome (7109999017).

The spelling of 2105544005 in words is "two billion, one hundred five million, five hundred forty-four thousand, five".