128548901 has 8 divisors (see below), whose sum is σ = 141383424. Its totient is φ = 116135280.

The previous prime is 128548853. The next prime is 128548907. The reversal of 128548901 is 109845821.

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 128548901 - 2¹⁰ = 128547877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128548907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104585 + ... + 105806.

It is an arithmetic number, because the mean of its divisors is an integer number (17672928).

Almost surely, 2^128548901 is an apocalyptic number.

It is an amenable number.

128548901 is a deficient number, since it is larger than the sum of its proper divisors (12834523).

128548901 is a wasteful number, since it uses less digits than its factorization.

128548901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210451.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 128548901 is about 11337.9407742323. The cubic root of 128548901 is about 504.6877800821.

The spelling of 128548901 in words is "one hundred twenty-eight million, five hundred forty-eight thousand, nine hundred one".