2130520 has 48 divisors (see below), whose sum is σ = 5581440. Its totient is φ = 729792.

The previous prime is 2130509. The next prime is 2130523. The reversal of 2130520 is 250312.

It is a self number, because there is not a number n which added to its sum of digits gives 2130520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1417 + ... + 2503.

It is an arithmetic number, because the mean of its divisors is an integer number (116280).

2^2130520 is an apocalyptic number.

2130520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2790720).

2130520 is an abundant number, since it is smaller than the sum of its proper divisors (3450920).

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

2130520 is a wasteful number, since it uses less digits than its factorization.

2130520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112 (or 1101 counting only the distinct ones).

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

The square root of 2130520 is about 1459.6300901256. The cubic root of 2130520 is about 128.6753046483.

Adding to 2130520 its reverse (250312), we get a palindrome (2380832).

The spelling of 2130520 in words is "two million, one hundred thirty thousand, five hundred twenty".