2108973165 has 48 divisors (see below), whose sum is σ = 3860360448. Its totient is φ = 977163264.

The previous prime is 2108973161. The next prime is 2108973173. The reversal of 2108973165 is 5613798012.

It is not a de Polignac number, because 2108973165 - 2² = 2108973161 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108973161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37644 + ... + 75066.

It is an arithmetic number, because the mean of its divisors is an integer number (80424176).

Almost surely, 2^2108973165 is an apocalyptic number.

It is an amenable number.

2108973165 is a deficient number, since it is larger than the sum of its proper divisors (1751387283).

2108973165 is a wasteful number, since it uses less digits than its factorization.

2108973165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37478 (or 37461 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 2108973165 is about 45923.5578434424. The cubic root of 2108973165 is about 1282.4005174212.

The spelling of 2108973165 in words is "two billion, one hundred eight million, nine hundred seventy-three thousand, one hundred sixty-five".