132721188 has 12 divisors (see below), whose sum is σ = 309682800. Its totient is φ = 44240392.

The previous prime is 132721181. The next prime is 132721189. The reversal of 132721188 is 881127231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×132721188² = 35229827488262688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (132721181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5530038 + ... + 5530061.

It is an arithmetic number, because the mean of its divisors is an integer number (25806900).

Almost surely, 2^132721188 is an apocalyptic number.

It is an amenable number.

132721188 is an abundant number, since it is smaller than the sum of its proper divisors (176961612).

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

132721188 is a wasteful number, since it uses less digits than its factorization.

132721188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060106 (or 11060104 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 132721188 is about 11520.4682196515. The cubic root of 132721188 is about 510.0899341592.

The spelling of 132721188 in words is "one hundred thirty-two million, seven hundred twenty-one thousand, one hundred eighty-eight".