132451728 has 20 divisors (see below), whose sum is σ = 342167088. Its totient is φ = 44150560.

The previous prime is 132451727. The next prime is 132451757. The reversal of 132451728 is 827154231.

It is not an unprimeable number, because it can be changed into a prime (132451727) 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, 1379658 + ... + 1379753.

Almost surely, 2^132451728 is an apocalyptic number.

It is an amenable number.

132451728 is an abundant number, since it is smaller than the sum of its proper divisors (209715360).

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

132451728 is a wasteful number, since it uses less digits than its factorization.

132451728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759422 (or 2759416 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 132451728 is about 11508.7674405212. The cubic root of 132451728 is about 509.7444933137.

The spelling of 132451728 in words is "one hundred thirty-two million, four hundred fifty-one thousand, seven hundred twenty-eight".