2105257312 has 24 divisors (see below), whose sum is σ = 4162082400. Its totient is φ = 1048220544.

The previous prime is 2105257309. The next prime is 2105257331. The reversal of 2105257312 is 2137525012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129987 + ... + 145282.

It is an arithmetic number, because the mean of its divisors is an integer number (173420100).

Almost surely, 2^2105257312 is an apocalyptic number.

It is an amenable number.

2105257312 is a deficient number, since it is larger than the sum of its proper divisors (2056825088).

2105257312 is a wasteful number, since it uses less digits than its factorization.

2105257312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275518 (or 275510 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 2105257312 is about 45883.0830699071. The cubic root of 2105257312 is about 1281.6469100448.

The spelling of 2105257312 in words is "two billion, one hundred five million, two hundred fifty-seven thousand, three hundred twelve".