2105530 has 24 divisors (see below), whose sum is σ = 4409748. Its totient is φ = 721728.

The previous prime is 2105513. The next prime is 2105549. The reversal of 2105530 is 355012.

It can be written as a sum of positive squares in 2 ways, for example, as 2099601 + 5929 = 1449^2 + 77^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1659 + ... + 2638.

2^2105530 is an apocalyptic number.

2105530 is an abundant number, since it is smaller than the sum of its proper divisors (2304218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105530 is a wasteful number, since it uses less digits than its factorization.

2105530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318 (or 4311 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 2105530 is about 1451.0444514211. The cubic root of 2105530 is about 128.1702243684.

The spelling of 2105530 in words is "two million, one hundred five thousand, five hundred thirty".