128706527 has 2 divisors, whose sum is σ = 128706528. Its totient is φ = 128706526.

The previous prime is 128706521. The next prime is 128706581. The reversal of 128706527 is 725607821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128706527 - 2⁶ = 128706463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128706521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64353263 + 64353264.

It is an arithmetic number, because the mean of its divisors is an integer number (64353264).

Almost surely, 2^128706527 is an apocalyptic number.

128706527 is a deficient number, since it is larger than the sum of its proper divisors (1).

128706527 is an equidigital number, since it uses as much as digits as its factorization.

128706527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 128706527 is about 11344.8899069140. The cubic root of 128706527 is about 504.8939776773.

The spelling of 128706527 in words is "one hundred twenty-eight million, seven hundred six thousand, five hundred twenty-seven".