3243132520 has 16 divisors (see below), whose sum is σ = 7297048260. Its totient is φ = 1297252992.

The previous prime is 3243132509. The next prime is 3243132589. The reversal of 3243132520 is 252313423.

It can be written as a sum of positive squares in 2 ways, for example, as 3214209636 + 28922884 = 56694^2 + 5378^2 .

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 3 ways as a sum of consecutive naturals, for example, 40539117 + ... + 40539196.

Almost surely, 2^3243132520 is an apocalyptic number.

It is an amenable number.

3243132520 is an abundant number, since it is smaller than the sum of its proper divisors (4053915740).

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

3243132520 is a wasteful number, since it uses less digits than its factorization.

3243132520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81078324 (or 81078320 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 3243132520 is about 56948.5076187252. The cubic root of 3243132520 is about 1480.2039711573.

Adding to 3243132520 its reverse (252313423), we get a palindrome (3495445943).

The spelling of 3243132520 in words is "three billion, two hundred forty-three million, one hundred thirty-two thousand, five hundred twenty".