128079 has 24 divisors (see below), whose sum is σ = 224640. Its totient is φ = 68688.

The previous prime is 128053. The next prime is 128099. The reversal of 128079 is 970821.

It is not a de Polignac number, because 128079 - 2⁵ = 128047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128099) 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 23 ways as a sum of consecutive naturals, for example, 1144 + ... + 1250.

It is an arithmetic number, because the mean of its divisors is an integer number (9360).

2¹²⁸⁰⁷⁹ is an apocalyptic number.

128079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

128079 is a deficient number, since it is larger than the sum of its proper divisors (96561).

128079 is a wasteful number, since it uses less digits than its factorization.

128079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 136 counting only the distinct ones).

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

The square root of 128079 is about 357.8812652263. The cubic root of 128079 is about 50.4072079638.

The spelling of 128079 in words is "one hundred twenty-eight thousand, seventy-nine".