128395853 has 2 divisors, whose sum is σ = 128395854. Its totient is φ = 128395852.

The previous prime is 128395843. The next prime is 128395873. The reversal of 128395853 is 358593821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114875524 + 13520329 = 10718^2 + 3677^2 .

It is a cyclic number.

It is not a de Polignac number, because 128395853 - 2¹⁴ = 128379469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128395843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64197926 + 64197927.

It is an arithmetic number, because the mean of its divisors is an integer number (64197927).

Almost surely, 2^128395853 is an apocalyptic number.

It is an amenable number.

128395853 is a deficient number, since it is larger than the sum of its proper divisors (1).

128395853 is an equidigital number, since it uses as much as digits as its factorization.

128395853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 44.

The square root of 128395853 is about 11331.1893903509. The cubic root of 128395853 is about 504.4874098231.

The spelling of 128395853 in words is "one hundred twenty-eight million, three hundred ninety-five thousand, eight hundred fifty-three".