2108530 has 8 divisors (see below), whose sum is σ = 3795372. Its totient is φ = 843408.

The previous prime is 2108521. The next prime is 2108531. The reversal of 2108530 is 358012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1979649 + 128881 = 1407^2 + 359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2108498 and 2108507.

It is not an unprimeable number, because it can be changed into a prime (2108531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105417 + ... + 105436.

2^2108530 is an apocalyptic number.

2108530 is a deficient number, since it is larger than the sum of its proper divisors (1686842).

2108530 is a wasteful number, since it uses less digits than its factorization.

2108530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210860.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2108530 is about 1452.0778216060. The cubic root of 2108530 is about 128.2310686211.

It can be divided in two parts, 21085 and 30, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 2108530 in words is "two million, one hundred eight thousand, five hundred thirty".