2001299105 has 16 divisors (see below), whose sum is σ = 2656197264. Its totient is φ = 1437937920.

The previous prime is 2001299063. The next prime is 2001299107. The reversal of 2001299105 is 5019921002.

It can be written as a sum of positive squares in 8 ways, for example, as 131515024 + 1869784081 = 11468^2 + 43241^2 .

It is not a de Polignac number, because 2001299105 - 2²⁰ = 2000250529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001299107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413666 + ... + 418475.

It is an arithmetic number, because the mean of its divisors is an integer number (166012329).

Almost surely, 2^2001299105 is an apocalyptic number.

It is an amenable number.

2001299105 is a deficient number, since it is larger than the sum of its proper divisors (654898159).

2001299105 is a wasteful number, since it uses less digits than its factorization.

2001299105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832196.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 2001299105 is about 44735.8816276152. The cubic root of 2001299105 is about 1260.1937858072.

The spelling of 2001299105 in words is "two billion, one million, two hundred ninety-nine thousand, one hundred five".