128754025 has 6 divisors (see below), whose sum is σ = 159655022. Its totient is φ = 103003200.

The previous prime is 128754019. The next prime is 128754047. The reversal of 128754025 is 520457821.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3493161 + 125260864 = 1869^2 + 11192^2 .

It is not a de Polignac number, because 128754025 - 2⁵ = 128753993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2575056 + ... + 2575105.

Almost surely, 2^128754025 is an apocalyptic number.

It is an amenable number.

128754025 is a deficient number, since it is larger than the sum of its proper divisors (30900997).

128754025 is an equidigital number, since it uses as much as digits as its factorization.

128754025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150171 (or 5150166 counting only the distinct ones).

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

The square root of 128754025 is about 11346.9830792154. The cubic root of 128754025 is about 504.9560789172.

It can be divided in two parts, 12875 and 4025, that added together give a square (16900 = 130²).

The spelling of 128754025 in words is "one hundred twenty-eight million, seven hundred fifty-four thousand, twenty-five".