128525951 has 2 divisors, whose sum is σ = 128525952. Its totient is φ = 128525950.

The previous prime is 128525927. The next prime is 128525953. The reversal of 128525951 is 159525821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128525951 - 2¹⁰ = 128524927 is a prime.

Together with 128525953, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128525953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64262975 + 64262976.

It is an arithmetic number, because the mean of its divisors is an integer number (64262976).

Almost surely, 2^128525951 is an apocalyptic number.

128525951 is a deficient number, since it is larger than the sum of its proper divisors (1).

128525951 is an equidigital number, since it uses as much as digits as its factorization.

128525951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 38.

The square root of 128525951 is about 11336.9286405093. The cubic root of 128525951 is about 504.6577441092.

The spelling of 128525951 in words is "one hundred twenty-eight million, five hundred twenty-five thousand, nine hundred fifty-one".