128284853 has 2 divisors, whose sum is σ = 128284854. Its totient is φ = 128284852.

The previous prime is 128284837. The next prime is 128284879. The reversal of 128284853 is 358482821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113592964 + 14691889 = 10658^2 + 3833^2 .

It is an emirp because it is prime and its reverse (358482821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128284853 - 2⁴ = 128284837 is a prime.

It is a super-3 number, since 3×128284853³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 128284853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128284813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64142426 + 64142427.

It is an arithmetic number, because the mean of its divisors is an integer number (64142427).

Almost surely, 2^128284853 is an apocalyptic number.

It is an amenable number.

128284853 is a deficient number, since it is larger than the sum of its proper divisors (1).

128284853 is an equidigital number, since it uses as much as digits as its factorization.

128284853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122880, while the sum is 41.

The square root of 128284853 is about 11326.2903459164. The cubic root of 128284853 is about 504.3419891158.

The spelling of 128284853 in words is "one hundred twenty-eight million, two hundred eighty-four thousand, eight hundred fifty-three".