128045233 has 2 divisors, whose sum is σ = 128045234. Its totient is φ = 128045232.

The previous prime is 128045219. The next prime is 128045261. The reversal of 128045233 is 332540821.

It is an a-pointer prime, because the next prime (128045261) can be obtained adding 128045233 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115605504 + 12439729 = 10752^2 + 3527^2 .

It is an emirp because it is prime and its reverse (332540821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128045233 - 2¹⁷ = 127914161 is a prime.

It is not a weakly prime, because it can be changed into another prime (128045263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64022616 + 64022617.

It is an arithmetic number, because the mean of its divisors is an integer number (64022617).

Almost surely, 2^128045233 is an apocalyptic number.

128045233 is the 6049-th centered heptagonal number.

It is an amenable number.

128045233 is a deficient number, since it is larger than the sum of its proper divisors (1).

128045233 is an equidigital number, since it uses as much as digits as its factorization.

128045233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 128045233 is about 11315.7073574744. The cubic root of 128045233 is about 504.0277775591.

The spelling of 128045233 in words is "one hundred twenty-eight million, forty-five thousand, two hundred thirty-three".