2105519908 has 6 divisors (see below), whose sum is σ = 3684659846. Its totient is φ = 1052759952.

The previous prime is 2105519881. The next prime is 2105519917. The reversal of 2105519908 is 8099155012.

It can be written as a sum of positive squares in only one way, i.e., 1725737764 + 379782144 = 41542^2 + 19488^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263189985 + ... + 263189992.

Almost surely, 2^2105519908 is an apocalyptic number.

It is an amenable number.

2105519908 is a deficient number, since it is larger than the sum of its proper divisors (1579139938).

2105519908 is a wasteful number, since it uses less digits than its factorization.

2105519908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526379981 (or 526379979 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 2105519908 is about 45885.9445582196. The cubic root of 2105519908 is about 1281.7001959081.

The spelling of 2105519908 in words is "two billion, one hundred five million, five hundred nineteen thousand, nine hundred eight".