2112520 has 16 divisors (see below), whose sum is σ = 4753260. Its totient is φ = 844992.

The previous prime is 2112511. The next prime is 2112533. The reversal of 2112520 is 252112.

It can be written as a sum of positive squares in 2 ways, for example, as 1695204 + 417316 = 1302^2 + 646^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2112520.

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, 26367 + ... + 26446.

2^2112520 is an apocalyptic number.

2112520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112520 is an abundant number, since it is smaller than the sum of its proper divisors (2640740).

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

2112520 is a wasteful number, since it uses less digits than its factorization.

2112520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52824 (or 52820 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2112520 is about 1453.4510655677. The cubic root of 2112520 is about 128.3119021202.

Adding to 2112520 its reverse (252112), we get a palindrome (2364632).

It can be divided in two parts, 21125 and 20, that multiplied together give a square (422500 = 650²).

The spelling of 2112520 in words is "two million, one hundred twelve thousand, five hundred twenty".