132728312 has 8 divisors (see below), whose sum is σ = 248865600. Its totient is φ = 66364152.

The previous prime is 132728311. The next prime is 132728327. The reversal of 132728312 is 213827231.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132728311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8295512 + ... + 8295527.

It is an arithmetic number, because the mean of its divisors is an integer number (31108200).

Almost surely, 2^132728312 is an apocalyptic number.

It is an amenable number.

132728312 is a deficient number, since it is larger than the sum of its proper divisors (116137288).

132728312 is a wasteful number, since it uses less digits than its factorization.

132728312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16591045 (or 16591041 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 132728312 is about 11520.7774043248. Note that the first 3 decimals coincide. The cubic root of 132728312 is about 510.0990605987.

The spelling of 132728312 in words is "one hundred thirty-two million, seven hundred twenty-eight thousand, three hundred twelve".