2909113205 has 6 divisors (see below), whose sum is σ = 3491080578. Its totient is φ = 2327194080.

The previous prime is 2909113189. The next prime is 2909113297. The reversal of 2909113205 is 5023119092.

It can be written as a sum of positive squares in 3 ways, for example, as 28536964 + 2880576241 = 5342^2 + 53671^2 .

It is not a de Polignac number, because 2909113205 - 2⁴ = 2909113189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108545 + ... + 132665.

It is an arithmetic number, because the mean of its divisors is an integer number (581846763).

Almost surely, 2^2909113205 is an apocalyptic number.

It is an amenable number.

2909113205 is a deficient number, since it is larger than the sum of its proper divisors (581967373).

2909113205 is an frugal number, since it uses more digits than its factorization.

2909113205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48247 (or 24126 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 2909113205 is about 53936.1956852724. The cubic root of 2909113205 is about 1427.5353579697.

The spelling of 2909113205 in words is "two billion, nine hundred nine million, one hundred thirteen thousand, two hundred five".