132555728 has 20 divisors (see below), whose sum is σ = 258467460. Its totient is φ = 65854464.

The previous prime is 132555727. The next prime is 132555743. The reversal of 132555728 is 827555231.

It can be written as a sum of positive squares in 2 ways, for example, as 37063744 + 95491984 = 6088^2 + 9772^2 .

It is a junction number, because it is equal to n+sod(n) for n = 132555691 and 132555700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132555727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23873 + ... + 28896.

It is an arithmetic number, because the mean of its divisors is an integer number (12923373).

Almost surely, 2^132555728 is an apocalyptic number.

It is an amenable number.

132555728 is a deficient number, since it is larger than the sum of its proper divisors (125911732).

132555728 is a wasteful number, since it uses less digits than its factorization.

132555728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52934 (or 52928 counting only the distinct ones).

The product of its digits is 84000, while the sum is 38.

The square root of 132555728 is about 11513.2848483828. The cubic root of 132555728 is about 509.8778741283.

The spelling of 132555728 in words is "one hundred thirty-two million, five hundred fifty-five thousand, seven hundred twenty-eight".