32130530 has 16 divisors (see below), whose sum is σ = 58784184. Its totient is φ = 12641280.

The previous prime is 32130529. The next prime is 32130551. The reversal of 32130530 is 3503123.

It can be written as a sum of positive squares in 4 ways, for example, as 15295921 + 16834609 = 3911^2 + 4103^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32130499 and 32130508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25727 + ... + 26946.

Almost surely, 2^32130530 is an apocalyptic number.

32130530 is a deficient number, since it is larger than the sum of its proper divisors (26653654).

32130530 is a wasteful number, since it uses less digits than its factorization.

32130530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52741.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 32130530 is about 5668.3798390722. The cubic root of 32130530 is about 317.9112986521.

Adding to 32130530 its reverse (3503123), we get a palindrome (35633653).

The spelling of 32130530 in words is "thirty-two million, one hundred thirty thousand, five hundred thirty".