128745055 has 8 divisors (see below), whose sum is σ = 154999152. Its totient is φ = 102659328.

The previous prime is 128745049. The next prime is 128745059. The reversal of 128745055 is 550547821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128745055 - 2¹¹ = 128743007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128745059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40402 + ... + 43471.

It is an arithmetic number, because the mean of its divisors is an integer number (19374894).

Almost surely, 2^128745055 is an apocalyptic number.

128745055 is a deficient number, since it is larger than the sum of its proper divisors (26254097).

128745055 is an equidigital number, since it uses as much as digits as its factorization.

128745055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84185.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 128745055 is about 11346.5878130828. The cubic root of 128745055 is about 504.9443522644.

The spelling of 128745055 in words is "one hundred twenty-eight million, seven hundred forty-five thousand, fifty-five".