128200897 has 8 divisors (see below), whose sum is σ = 139959360. Its totient is φ = 116459760.

The previous prime is 128200883. The next prime is 128200991. The reversal of 128200897 is 798002821.

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

It is a cyclic number.

It is not a de Polignac number, because 128200897 - 2²³ = 119812289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128200837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14868 + ... + 21850.

It is an arithmetic number, because the mean of its divisors is an integer number (17494920).

Almost surely, 2^128200897 is an apocalyptic number.

It is an amenable number.

128200897 is a deficient number, since it is larger than the sum of its proper divisors (11758463).

128200897 is a wasteful number, since it uses less digits than its factorization.

128200897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 128200897 is about 11322.5834949450. The cubic root of 128200897 is about 504.2319429297.

The spelling of 128200897 in words is "one hundred twenty-eight million, two hundred thousand, eight hundred ninety-seven".