128805254 has 8 divisors (see below), whose sum is σ = 193269648. Its totient is φ = 64382040.

The previous prime is 128805241. The next prime is 128805283. The reversal of 128805254 is 452508821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677 + ... + 16064.

It is an arithmetic number, because the mean of its divisors is an integer number (24158706).

Almost surely, 2^128805254 is an apocalyptic number.

128805254 is a deficient number, since it is larger than the sum of its proper divisors (64464394).

128805254 is a wasteful number, since it uses less digits than its factorization.

128805254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20590.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 128805254 is about 11349.2402388882. The cubic root of 128805254 is about 505.0230411341.

The spelling of 128805254 in words is "one hundred twenty-eight million, eight hundred five thousand, two hundred fifty-four".