128805303 has 8 divisors (see below), whose sum is σ = 187353216. Its totient is φ = 78063800.

The previous prime is 128805283. The next prime is 128805307. The reversal of 128805303 is 303508821.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 128805303 - 2⁹ = 128804791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128805307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1951563 + ... + 1951628.

It is an arithmetic number, because the mean of its divisors is an integer number (23419152).

Almost surely, 2^128805303 is an apocalyptic number.

128805303 is a deficient number, since it is larger than the sum of its proper divisors (58547913).

128805303 is a wasteful number, since it uses less digits than its factorization.

128805303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903205.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 128805303 is about 11349.2423976228. The cubic root of 128805303 is about 505.0231051743.

The spelling of 128805303 in words is "one hundred twenty-eight million, eight hundred five thousand, three hundred three".