128574847 has 2 divisors, whose sum is σ = 128574848. Its totient is φ = 128574846.

The previous prime is 128574841. The next prime is 128574851. The reversal of 128574847 is 748475821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128574847 - 2²³ = 120186239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128574797 and 128574806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128574841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64287423 + 64287424.

It is an arithmetic number, because the mean of its divisors is an integer number (64287424).

Almost surely, 2^128574847 is an apocalyptic number.

128574847 is a deficient number, since it is larger than the sum of its proper divisors (1).

128574847 is an equidigital number, since it uses as much as digits as its factorization.

128574847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 501760, while the sum is 46.

The square root of 128574847 is about 11339.0849278061. The cubic root of 128574847 is about 504.7217327858.

The spelling of 128574847 in words is "one hundred twenty-eight million, five hundred seventy-four thousand, eight hundred forty-seven".