128833 has 2 divisors, whose sum is σ = 128834. Its totient is φ = 128832.

The previous prime is 128831. The next prime is 128837. The reversal of 128833 is 338821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106929 + 21904 = 327^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 128833 - 2¹ = 128831 is a prime.

Together with 128831, it forms a pair of twin primes.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 128798 and 128807.

It is not a weakly prime, because it can be changed into another prime (128831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64416 + 64417.

It is an arithmetic number, because the mean of its divisors is an integer number (64417).

2¹²⁸⁸³³ is an apocalyptic number.

It is an amenable number.

128833 is a deficient number, since it is larger than the sum of its proper divisors (1).

128833 is an equidigital number, since it uses as much as digits as its factorization.

128833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 128833 is about 358.9331414066. The cubic root of 128833 is about 50.5059300947.

It can be divided in two parts, 128 and 833, that added together give a square (961 = 31²).

The spelling of 128833 in words is "one hundred twenty-eight thousand, eight hundred thirty-three".