2124520 has 16 divisors (see below), whose sum is σ = 4780260. Its totient is φ = 849792.

The previous prime is 2124517. The next prime is 2124553. The reversal of 2124520 is 254212.

It can be written as a sum of positive squares in 2 ways, for example, as 2114116 + 10404 = 1454^2 + 102^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2124494 and 2124503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26517 + ... + 26596.

2^2124520 is an apocalyptic number.

2124520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124520 is an abundant number, since it is smaller than the sum of its proper divisors (2655740).

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

2124520 is a wasteful number, since it uses less digits than its factorization.

2124520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53124 (or 53120 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2124520 is about 1457.5733257713. The cubic root of 2124520 is about 128.5543986850.

Adding to 2124520 its reverse (254212), we get a palindrome (2378732).

The spelling of 2124520 in words is "two million, one hundred twenty-four thousand, five hundred twenty".