128487052 has 24 divisors (see below), whose sum is σ = 237006000. Its totient is φ = 60854976.

The previous prime is 128487019. The next prime is 128487059. The reversal of 128487052 is 250784821.

It is not an unprimeable number, because it can be changed into a prime (128487059) 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 7 ways as a sum of consecutive naturals, for example, 4302 + ... + 16597.

It is an arithmetic number, because the mean of its divisors is an integer number (9875250).

Almost surely, 2^128487052 is an apocalyptic number.

It is an amenable number.

128487052 is a deficient number, since it is larger than the sum of its proper divisors (108518948).

128487052 is a wasteful number, since it uses less digits than its factorization.

128487052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20985 (or 20983 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 128487052 is about 11335.2129225701. The cubic root of 128487052 is about 504.6068266040.

It can be divided in two parts, 12848 and 7052, that added together give a triangular number (19900 = T₁₉₉).

The spelling of 128487052 in words is "one hundred twenty-eight million, four hundred eighty-seven thousand, fifty-two".