128573 has 8 divisors (see below), whose sum is σ = 138720. Its totient is φ = 118800.

The previous prime is 128563. The next prime is 128591. The reversal of 128573 is 375821.

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 128573 - 2⁶ = 128509 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128563) 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, 1223 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (17340).

2¹²⁸⁵⁷³ is an apocalyptic number.

It is an amenable number.

128573 is a deficient number, since it is larger than the sum of its proper divisors (10147).

128573 is a wasteful number, since it uses less digits than its factorization.

128573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 1680, while the sum is 26.

The square root of 128573 is about 358.5707740461. The cubic root of 128573 is about 50.4719315969.

The spelling of 128573 in words is "one hundred twenty-eight thousand, five hundred seventy-three".