861324132 has 24 divisors (see below), whose sum is σ = 2011927456. Its totient is φ = 286797888.

The previous prime is 861324109. The next prime is 861324133. The reversal of 861324132 is 231423168.

861324132 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 861324132.

It is not an unprimeable number, because it can be changed into a prime (861324133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27058 + ... + 49545.

Almost surely, 2^861324132 is an apocalyptic number.

It is an amenable number.

861324132 is an abundant number, since it is smaller than the sum of its proper divisors (1150603324).

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

861324132 is a wasteful number, since it uses less digits than its factorization.

861324132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77547 (or 77545 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 861324132 is about 29348.3241770293. The cubic root of 861324132 is about 951.4563560989.

The spelling of 861324132 in words is "eight hundred sixty-one million, three hundred twenty-four thousand, one hundred thirty-two".