128547332 has 6 divisors (see below), whose sum is σ = 224957838. Its totient is φ = 64273664.

The previous prime is 128547317. The next prime is 128547337. The reversal of 128547332 is 233745821.

It can be written as a sum of positive squares in only one way, i.e., 128504896 + 42436 = 11336^2 + 206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 128547292 and 128547301.

It is not an unprimeable number, because it can be changed into a prime (128547337) 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 as a sum of consecutive naturals, namely, 16068413 + ... + 16068420.

It is an arithmetic number, because the mean of its divisors is an integer number (37492973).

Almost surely, 2^128547332 is an apocalyptic number.

It is an amenable number.

128547332 is a deficient number, since it is larger than the sum of its proper divisors (96410506).

128547332 is a wasteful number, since it uses less digits than its factorization.

128547332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32136837 (or 32136835 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 128547332 is about 11337.8715815624. The cubic root of 128547332 is about 504.6857267562.

The spelling of 128547332 in words is "one hundred twenty-eight million, five hundred forty-seven thousand, three hundred thirty-two".