128094997 has 2 divisors, whose sum is σ = 128094998. Its totient is φ = 128094996.

The previous prime is 128094973. The next prime is 128095003. The reversal of 128094997 is 799490821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127825636 + 269361 = 11306^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 128094997 - 2¹¹ = 128092949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128094997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128094917) 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, 64047498 + 64047499.

It is an arithmetic number, because the mean of its divisors is an integer number (64047499).

Almost surely, 2^128094997 is an apocalyptic number.

It is an amenable number.

128094997 is a deficient number, since it is larger than the sum of its proper divisors (1).

128094997 is an equidigital number, since it uses as much as digits as its factorization.

128094997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 128094997 is about 11317.9060342450. The cubic root of 128094997 is about 504.0930648773.

The spelling of 128094997 in words is "one hundred twenty-eight million, ninety-four thousand, nine hundred ninety-seven".