2132521530 has 32 divisors (see below), whose sum is σ = 5148710784. Its totient is φ = 565265856.

The previous prime is 2132521519. The next prime is 2132521543. The reversal of 2132521530 is 351252312.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2132521530.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 207817 + ... + 217836.

It is an arithmetic number, because the mean of its divisors is an integer number (160897212).

Almost surely, 2^2132521530 is an apocalyptic number.

2132521530 is an abundant number, since it is smaller than the sum of its proper divisors (3016189254).

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

2132521530 is a wasteful number, since it uses less digits than its factorization.

2132521530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425830.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2132521530 is about 46179.2326701083. The cubic root of 2132521530 is about 1287.1558696949.

Adding to 2132521530 its reverse (351252312), we get a palindrome (2483773842).

The spelling of 2132521530 in words is "two billion, one hundred thirty-two million, five hundred twenty-one thousand, five hundred thirty".