128938201 has 16 divisors (see below), whose sum is σ = 151918848. Its totient is φ = 107150400.

The previous prime is 128938189. The next prime is 128938211. The reversal of 128938201 is 102839821.

It is not a de Polignac number, because 128938201 - 2⁵ = 128938169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128938211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28191 + ... + 32443.

It is an arithmetic number, because the mean of its divisors is an integer number (9494928).

Almost surely, 2^128938201 is an apocalyptic number.

It is an amenable number.

128938201 is a deficient number, since it is larger than the sum of its proper divisors (22980647).

128938201 is an equidigital number, since it uses as much as digits as its factorization.

128938201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 128938201 is about 11355.0958164165. The cubic root of 128938201 is about 505.1967354241.

The spelling of 128938201 in words is "one hundred twenty-eight million, nine hundred thirty-eight thousand, two hundred one".