128207 has 8 divisors (see below), whose sum is σ = 136080. Its totient is φ = 120640.

The previous prime is 128203. The next prime is 128213. The reversal of 128207 is 702821.

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 128207 - 2² = 128203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 128207.

It is not an unprimeable number, because it can be changed into a prime (128201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2144 + ... + 2202.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2¹²⁸²⁰⁷ is an apocalyptic number.

128207 is a deficient number, since it is larger than the sum of its proper divisors (7873).

128207 is an equidigital number, since it uses as much as digits as its factorization.

128207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 128207 is about 358.0600508295. The cubic root of 128207 is about 50.4239944118.

The spelling of 128207 in words is "one hundred twenty-eight thousand, two hundred seven".