128276933 has 2 divisors, whose sum is σ = 128276934. Its totient is φ = 128276932.

The previous prime is 128276899. The next prime is 128276989. The reversal of 128276933 is 339672821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121506529 + 6770404 = 11023^2 + 2602^2 .

It is a cyclic number.

It is not a de Polignac number, because 128276933 - 2¹⁴ = 128260549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128276833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64138466 + 64138467.

It is an arithmetic number, because the mean of its divisors is an integer number (64138467).

Almost surely, 2^128276933 is an apocalyptic number.

It is an amenable number.

128276933 is a deficient number, since it is larger than the sum of its proper divisors (1).

128276933 is an equidigital number, since it uses as much as digits as its factorization.

128276933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 128276933 is about 11325.9407114818. The cubic root of 128276933 is about 504.3316099461.

The spelling of 128276933 in words is "one hundred twenty-eight million, two hundred seventy-six thousand, nine hundred thirty-three".