132751728 has 30 divisors (see below), whose sum is σ = 371520864. Its totient is φ = 44250528.

The previous prime is 132751681. The next prime is 132751739. The reversal of 132751728 is 827157231.

132751728 is a `hidden beast` number, since 132 + 7 + 517 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 132751692 and 132751701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 460800 + ... + 461087.

Almost surely, 2^132751728 is an apocalyptic number.

132751728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

132751728 is an abundant number, since it is smaller than the sum of its proper divisors (238769136).

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

132751728 is a wasteful number, since it uses less digits than its factorization.

132751728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921901 (or 921892 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 132751728 is about 11521.7936103716. The cubic root of 132751728 is about 510.1290561514.

The spelling of 132751728 in words is "one hundred thirty-two million, seven hundred fifty-one thousand, seven hundred twenty-eight".