128353 has 4 divisors (see below), whose sum is σ = 131860. Its totient is φ = 124848.

The previous prime is 128351. The next prime is 128377. The reversal of 128353 is 353821.

128353 is nontrivially palindromic in base 13.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53824 + 74529 = 232^2 + 273^2 .

It is a cyclic number.

It is not a de Polignac number, because 128353 - 2¹ = 128351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128351) 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, 1698 + ... + 1771.

It is an arithmetic number, because the mean of its divisors is an integer number (32965).

2¹²⁸³⁵³ is an apocalyptic number.

128353 is the 192-nd centered heptagonal number.

It is an amenable number.

128353 is a deficient number, since it is larger than the sum of its proper divisors (3507).

128353 is an equidigital number, since it uses as much as digits as its factorization.

128353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506.

The product of its digits is 720, while the sum is 22.

The square root of 128353 is about 358.2638692361. The cubic root of 128353 is about 50.4431278196.

The spelling of 128353 in words is "one hundred twenty-eight thousand, three hundred fifty-three".