132129940 has 24 divisors (see below), whose sum is σ = 289537920. Its totient is φ = 50553888.

The previous prime is 132129931. The next prime is 132129947. The reversal of 132129940 is 49921231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132129947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143160 + ... + 144079.

It is an arithmetic number, because the mean of its divisors is an integer number (12064080).

Almost surely, 2^132129940 is an apocalyptic number.

132129940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132129940 is an abundant number, since it is smaller than the sum of its proper divisors (157407980).

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

132129940 is a wasteful number, since it uses less digits than its factorization.

132129940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287271 (or 287269 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 132129940 is about 11494.7788147489. The cubic root of 132129940 is about 509.3313549366.

The spelling of 132129940 in words is "one hundred thirty-two million, one hundred twenty-nine thousand, nine hundred forty".