2105540005 has 8 divisors (see below), whose sum is σ = 2659629600. Its totient is φ = 1595777616.

The previous prime is 2105539999. The next prime is 2105540023. The reversal of 2105540005 is 5000455012.

2105540005 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2105540005 - 2⁵ = 2105539973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11081695 + ... + 11081884.

It is an arithmetic number, because the mean of its divisors is an integer number (332453700).

Almost surely, 2^2105540005 is an apocalyptic number.

It is an amenable number.

2105540005 is a deficient number, since it is larger than the sum of its proper divisors (554089595).

2105540005 is a wasteful number, since it uses less digits than its factorization.

2105540005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22163603.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2105540005 is about 45886.1635463241. The cubic root of 2105540005 is about 1281.7042737998.

Adding to 2105540005 its reverse (5000455012), we get a palindrome (7105995017).

The spelling of 2105540005 in words is "two billion, one hundred five million, five hundred forty thousand, five".