128063 has 4 divisors (see below), whose sum is σ = 137928. Its totient is φ = 118200.

The previous prime is 128053. The next prime is 128099. The reversal of 128063 is 360821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128063 - 2⁴ = 128047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4913 + ... + 4938.

It is an arithmetic number, because the mean of its divisors is an integer number (34482).

2¹²⁸⁰⁶³ is an apocalyptic number.

128063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128063 is a deficient number, since it is larger than the sum of its proper divisors (9865).

128063 is an equidigital number, since it uses as much as digits as its factorization.

128063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 128063 is about 357.8589107456. The cubic root of 128063 is about 50.4051088715.

Adding to 128063 its reverse (360821), we get a palindrome (488884).

The spelling of 128063 in words is "one hundred twenty-eight thousand, sixty-three".