128064523 has 2 divisors, whose sum is σ = 128064524. Its totient is φ = 128064522.

The previous prime is 128064509. The next prime is 128064527. The reversal of 128064523 is 325460821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128064523 - 2⁵ = 128064491 is a prime.

It is not a weakly prime, because it can be changed into another prime (128064527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64032261 + 64032262.

It is an arithmetic number, because the mean of its divisors is an integer number (64032262).

Almost surely, 2^128064523 is an apocalyptic number.

128064523 is a deficient number, since it is larger than the sum of its proper divisors (1).

128064523 is an equidigital number, since it uses as much as digits as its factorization.

128064523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 128064523 is about 11316.5596803976. The cubic root of 128064523 is about 504.0530868642.

The spelling of 128064523 in words is "one hundred twenty-eight million, sixty-four thousand, five hundred twenty-three".