2120530 has 16 divisors (see below), whose sum is σ = 3889944. Its totient is φ = 832000.

The previous prime is 2120513. The next prime is 2120537. The reversal of 2120530 is 350212.

It can be written as a sum of positive squares in 4 ways, for example, as 1361889 + 758641 = 1167^2 + 871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2120530.

It is not an unprimeable number, because it can be changed into a prime (2120537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471 + ... + 2530.

2^2120530 is an apocalyptic number.

2120530 is a deficient number, since it is larger than the sum of its proper divisors (1769414).

2120530 is a wasteful number, since it uses less digits than its factorization.

2120530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2120530 is about 1456.2039692296. The cubic root of 2120530 is about 128.4738701431.

Adding to 2120530 its reverse (350212), we get a palindrome (2470742).

It can be divided in two parts, 2120 and 530, that multiplied together give a square (1123600 = 1060²).

The spelling of 2120530 in words is "two million, one hundred twenty thousand, five hundred thirty".