128097 has 12 divisors (see below), whose sum is σ = 189904. Its totient is φ = 83160.

The previous prime is 128053. The next prime is 128099. The reversal of 128097 is 790821.

It is not a de Polignac number, because 128097 - 2⁶ = 128033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128097.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 128097.

It is not an unprimeable number, because it can be changed into a prime (128099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222 + ... + 552.

2¹²⁸⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

128097 is a deficient number, since it is larger than the sum of its proper divisors (61807).

128097 is a wasteful number, since it uses less digits than its factorization.

128097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 128097 is about 357.9064123483. The cubic root of 128097 is about 50.4095692337.

The spelling of 128097 in words is "one hundred twenty-eight thousand, ninety-seven".