132831720 has 96 divisors (see below), whose sum is σ = 493384320. Its totient is φ = 30360960.

The previous prime is 132831701. The next prime is 132831731. The reversal of 132831720 is 27138231.

132831720 is a `hidden beast` number, since 1 + 328 + 317 + 20 = 666.

132831720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23836 + ... + 28875.

It is an arithmetic number, because the mean of its divisors is an integer number (5139420).

Almost surely, 2^132831720 is an apocalyptic number.

132831720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132831720 is an abundant number, since it is smaller than the sum of its proper divisors (360552600).

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

132831720 is a wasteful number, since it uses less digits than its factorization.

132831720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52735 (or 52728 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 132831720 is about 11525.2644221293. The cubic root of 132831720 is about 510.2314981325.

Adding to 132831720 its reverse (27138231), we get a palindrome (159969951).

The spelling of 132831720 in words is "one hundred thirty-two million, eight hundred thirty-one thousand, seven hundred twenty".