128073 has 8 divisors (see below), whose sum is σ = 186336. Its totient is φ = 77600.

The previous prime is 128053. The next prime is 128099. The reversal of 128073 is 370821.

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 128073 - 2⁸ = 127817 is a prime.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 1908 + ... + 1973.

It is an arithmetic number, because the mean of its divisors is an integer number (23292).

2¹²⁸⁰⁷³ is an apocalyptic number.

It is an amenable number.

128073 is a deficient number, since it is larger than the sum of its proper divisors (58263).

128073 is a wasteful number, since it uses less digits than its factorization.

128073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3895.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 128073 is about 357.8728824597. The cubic root of 128073 is about 50.4064208247.

Adding to 128073 its reverse (370821), we get a palindrome (498894).

The spelling of 128073 in words is "one hundred twenty-eight thousand, seventy-three".