128147403125 has 36 divisors (see below), whose sum is σ = 186325082244. Its totient is φ = 87872400000.

The previous prime is 128147403091. The next prime is 128147403187. The reversal of 128147403125 is 521304741821.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 106946004676 + 21201398449 = 327026^2 + 145607^2 .

It is not a de Polignac number, because 128147403125 - 2¹⁰ = 128147402101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 265316 + ... + 571565.

It is an arithmetic number, because the mean of its divisors is an integer number (5175696729).

Almost surely, 2^128147403125 is an apocalyptic number.

It is an amenable number.

128147403125 is a deficient number, since it is larger than the sum of its proper divisors (58177679119).

128147403125 is an frugal number, since it uses more digits than its factorization.

128147403125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836920 (or 836893 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 128147403125 in words is "one hundred twenty-eight billion, one hundred forty-seven million, four hundred three thousand, one hundred twenty-five".