128763025 has 12 divisors (see below), whose sum is σ = 160137072. Its totient is φ = 102706640.

The previous prime is 128763017. The next prime is 128763031. The reversal of 128763025 is 520367821.

It is a happy number.

It is not a de Polignac number, because 128763025 - 2³ = 128763017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1254 + ... + 16096.

It is an arithmetic number, because the mean of its divisors is an integer number (13344756).

Almost surely, 2^128763025 is an apocalyptic number.

It is an amenable number.

128763025 is a deficient number, since it is larger than the sum of its proper divisors (31374047).

128763025 is a wasteful number, since it uses less digits than its factorization.

128763025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15200 (or 15195 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 128763025 is about 11347.3796534707. The cubic root of 128763025 is about 504.9678442421.

The spelling of 128763025 in words is "one hundred twenty-eight million, seven hundred sixty-three thousand, twenty-five".