128548401 has 8 divisors (see below), whose sum is σ = 173746080. Its totient is φ = 84524832.

The previous prime is 128548393. The next prime is 128548439. The reversal of 128548401 is 104845821.

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

It is not a de Polignac number, because 128548401 - 2³ = 128548393 is a prime.

It is a super-3 number, since 3×128548401³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (128548481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293271 + ... + 293708.

It is an arithmetic number, because the mean of its divisors is an integer number (21718260).

Almost surely, 2^128548401 is an apocalyptic number.

It is an amenable number.

128548401 is a deficient number, since it is larger than the sum of its proper divisors (45197679).

128548401 is an equidigital number, since it uses as much as digits as its factorization.

128548401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587055.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 128548401 is about 11337.9187243515. The cubic root of 128548401 is about 504.6871257417.

The spelling of 128548401 in words is "one hundred twenty-eight million, five hundred forty-eight thousand, four hundred one".