128952179 has 2 divisors, whose sum is σ = 128952180. Its totient is φ = 128952178.

The previous prime is 128952169. The next prime is 128952217. The reversal of 128952179 is 971259821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128952179 - 2⁸ = 128951923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128952139) 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, 64476089 + 64476090.

It is an arithmetic number, because the mean of its divisors is an integer number (64476090).

Almost surely, 2^128952179 is an apocalyptic number.

128952179 is a deficient number, since it is larger than the sum of its proper divisors (1).

128952179 is an equidigital number, since it uses as much as digits as its factorization.

128952179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 44.

The square root of 128952179 is about 11355.7112943223. The cubic root of 128952179 is about 505.2149906418.

The spelling of 128952179 in words is "one hundred twenty-eight million, nine hundred fifty-two thousand, one hundred seventy-nine".