128455241 has 2 divisors, whose sum is σ = 128455242. Its totient is φ = 128455240.

The previous prime is 128455237. The next prime is 128455267. The reversal of 128455241 is 142554821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127599616 + 855625 = 11296^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 128455241 - 2² = 128455237 is a prime.

It is equal to p_7295351 and since 128455241 and 7295351 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 128455198 and 128455207.

It is not a weakly prime, because it can be changed into another prime (128455211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64227620 + 64227621.

It is an arithmetic number, because the mean of its divisors is an integer number (64227621).

Almost surely, 2^128455241 is an apocalyptic number.

It is an amenable number.

128455241 is a deficient number, since it is larger than the sum of its proper divisors (1).

128455241 is an equidigital number, since it uses as much as digits as its factorization.

128455241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12800, while the sum is 32.

The square root of 128455241 is about 11333.8096419518. The cubic root of 128455241 is about 504.5651794174.

The spelling of 128455241 in words is "one hundred twenty-eight million, four hundred fifty-five thousand, two hundred forty-one".