2141505520 has 160 divisors (see below), whose sum is σ = 6228887040. Its totient is φ = 665195520.

The previous prime is 2141505491. The next prime is 2141505529. The reversal of 2141505520 is 255051412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141505529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3135099 + ... + 3135781.

It is an arithmetic number, because the mean of its divisors is an integer number (38930544).

Almost surely, 2^2141505520 is an apocalyptic number.

2141505520 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 2141505520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3114443520).

2141505520 is an abundant number, since it is smaller than the sum of its proper divisors (4087381520).

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

2141505520 is a wasteful number, since it uses less digits than its factorization.

2141505520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2141505520 is about 46276.4034903319. The cubic root of 2141505520 is about 1288.9608682002.

Adding to 2141505520 its reverse (255051412), we get a palindrome (2396556932).

The spelling of 2141505520 in words is "two billion, one hundred forty-one million, five hundred five thousand, five hundred twenty".