811530532 has 12 divisors (see below), whose sum is σ = 1441375600. Its totient is φ = 399708936.

The previous prime is 811530491. The next prime is 811530563. The reversal of 811530532 is 235035118.

811530532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 811530532.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513782 + ... + 1514317.

Almost surely, 2^811530532 is an apocalyptic number.

It is an amenable number.

811530532 is a deficient number, since it is larger than the sum of its proper divisors (629845068).

811530532 is a wasteful number, since it uses less digits than its factorization.

811530532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028170 (or 3028168 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 811530532 is about 28487.3749580406. The cubic root of 811530532 is about 932.7565081491.

The spelling of 811530532 in words is "eight hundred eleven million, five hundred thirty thousand, five hundred thirty-two".