128075425 has 12 divisors (see below), whose sum is σ = 160029936. Its totient is φ = 101675600.

The previous prime is 128075411. The next prime is 128075429. The reversal of 128075425 is 524570821.

It is a happy number.

It is not a de Polignac number, because 128075425 - 2⁵ = 128075393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128075429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16279 + ... + 22828.

It is an arithmetic number, because the mean of its divisors is an integer number (13335828).

Almost surely, 2^128075425 is an apocalyptic number.

It is an amenable number.

128075425 is a deficient number, since it is larger than the sum of its proper divisors (31954511).

128075425 is a wasteful number, since it uses less digits than its factorization.

128075425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39248 (or 39243 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 128075425 is about 11317.0413536401. The cubic root of 128075425 is about 504.0673896305.

The spelling of 128075425 in words is "one hundred twenty-eight million, seventy-five thousand, four hundred twenty-five".