128271096 has 24 divisors (see below), whose sum is σ = 347401080. Its totient is φ = 42757008.

The previous prime is 128271079. The next prime is 128271127. The reversal of 128271096 is 690172821.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128271096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 890700 + ... + 890843.

It is an arithmetic number, because the mean of its divisors is an integer number (14475045).

Almost surely, 2^128271096 is an apocalyptic number.

It is an amenable number.

128271096 is an abundant number, since it is smaller than the sum of its proper divisors (219129984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128271096 is a wasteful number, since it uses less digits than its factorization.

128271096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781555 (or 1781548 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 128271096 is about 11325.6830257605. The cubic root of 128271096 is about 504.3239602771.

The spelling of 128271096 in words is "one hundred twenty-eight million, two hundred seventy-one thousand, ninety-six".