2105143005 has 16 divisors (see below), whose sum is σ = 3849404544. Its totient is φ = 962351040.

The previous prime is 2105143003. The next prime is 2105143013. The reversal of 2105143005 is 5003415012.

It is not a de Polignac number, because 2105143005 - 2¹ = 2105143003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105143003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10024386 + ... + 10024595.

It is an arithmetic number, because the mean of its divisors is an integer number (240587784).

Almost surely, 2^2105143005 is an apocalyptic number.

It is an amenable number.

2105143005 is a deficient number, since it is larger than the sum of its proper divisors (1744261539).

2105143005 is a wasteful number, since it uses less digits than its factorization.

2105143005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20048996.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2105143005 is about 45881.8374196152. The cubic root of 2105143005 is about 1281.6237135351.

Adding to 2105143005 its reverse (5003415012), we get a palindrome (7108558017).

The spelling of 2105143005 in words is "two billion, one hundred five million, one hundred forty-three thousand, five".