128303895 has 8 divisors (see below), whose sum is σ = 205286256. Its totient is φ = 68428736.

The previous prime is 128303881. The next prime is 128303897. The reversal of 128303895 is 598303821.

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 128303895 - 2⁵ = 128303863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128303897) 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, 4276782 + ... + 4276811.

It is an arithmetic number, because the mean of its divisors is an integer number (25660782).

Almost surely, 2^128303895 is an apocalyptic number.

128303895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128303895 is a deficient number, since it is larger than the sum of its proper divisors (76982361).

128303895 is an equidigital number, since it uses as much as digits as its factorization.

128303895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553601.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 128303895 is about 11327.1309253491. The cubic root of 128303895 is about 504.3669419318.

The spelling of 128303895 in words is "one hundred twenty-eight million, three hundred three thousand, eight hundred ninety-five".