128027 has 6 divisors (see below), whose sum is σ = 136308. Its totient is φ = 120224.

The previous prime is 128021. The next prime is 128033. The reversal of 128027 is 720821.

It is an interprime number because it is at equal distance from previous prime (128021) and next prime (128033).

It is not a de Polignac number, because 128027 - 2¹² = 123931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68 + ... + 510.

It is an arithmetic number, because the mean of its divisors is an integer number (22718).

2¹²⁸⁰²⁷ is an apocalyptic number.

128027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

128027 is a deficient number, since it is larger than the sum of its proper divisors (8281).

128027 is an equidigital number, since it uses as much as digits as its factorization.

128027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 460 counting only the distinct ones).

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

The square root of 128027 is about 357.8086080574. The cubic root of 128027 is about 50.4003852746.

Adding to 128027 its reverse (720821), we get a palindrome (848848).

The spelling of 128027 in words is "one hundred twenty-eight thousand, twenty-seven".