132721332 has 24 divisors (see below), whose sum is σ = 309876000. Its totient is φ = 44212896.

The previous prime is 132721307. The next prime is 132721333. The reversal of 132721332 is 233127231.

It is a super-2 number, since 2×132721332² = 35229903935708448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132721333) 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, 28419 + ... + 32757.

It is an arithmetic number, because the mean of its divisors is an integer number (12911500).

Almost surely, 2^132721332 is an apocalyptic number.

132721332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

132721332 is an abundant number, since it is smaller than the sum of its proper divisors (177154668).

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

132721332 is a wasteful number, since it uses less digits than its factorization.

132721332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6895 (or 6893 counting only the distinct ones).

The product of its digits is 1512, while the sum is 24.

The square root of 132721332 is about 11520.4744693958. The cubic root of 132721332 is about 510.0901186384.

Adding to 132721332 its reverse (233127231), we get a palindrome (365848563).

The spelling of 132721332 in words is "one hundred thirty-two million, seven hundred twenty-one thousand, three hundred thirty-two".