128450101 has 8 divisors (see below), whose sum is σ = 144345600. Its totient is φ = 113413872.

The previous prime is 128450059. The next prime is 128450117. The reversal of 128450101 is 101054821.

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

It is not a de Polignac number, because 128450101 - 2⁷ = 128449973 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 (128450141) 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, 214501 + ... + 215098.

It is an arithmetic number, because the mean of its divisors is an integer number (18043200).

Almost surely, 2^128450101 is an apocalyptic number.

It is an amenable number.

128450101 is a deficient number, since it is larger than the sum of its proper divisors (15895499).

128450101 is a wasteful number, since it uses less digits than its factorization.

128450101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429635.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 128450101 is about 11333.5828845074. The cubic root of 128450101 is about 504.5584494478.

The spelling of 128450101 in words is "one hundred twenty-eight million, four hundred fifty thousand, one hundred one".