128922527 has 2 divisors, whose sum is σ = 128922528. Its totient is φ = 128922526.

The previous prime is 128922523. The next prime is 128922571. The reversal of 128922527 is 725229821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128922527 - 2² = 128922523 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 (128922523) 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, 64461263 + 64461264.

It is an arithmetic number, because the mean of its divisors is an integer number (64461264).

Almost surely, 2^128922527 is an apocalyptic number.

128922527 is a deficient number, since it is larger than the sum of its proper divisors (1).

128922527 is an equidigital number, since it uses as much as digits as its factorization.

128922527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 128922527 is about 11354.4056207271. The cubic root of 128922527 is about 505.1762636672.

The spelling of 128922527 in words is "one hundred twenty-eight million, nine hundred twenty-two thousand, five hundred twenty-seven".