128310375 has 32 divisors (see below), whose sum is σ = 214239168. Its totient is φ = 68198400.

The previous prime is 128310313. The next prime is 128310379. The reversal of 128310375 is 573013821.

It is not a de Polignac number, because 128310375 - 2⁶ = 128310311 is a prime.

It is a super-3 number, since 3×128310375³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128310379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216079 + ... + 216671.

It is an arithmetic number, because the mean of its divisors is an integer number (6694974).

Almost surely, 2^128310375 is an apocalyptic number.

128310375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128310375 is a deficient number, since it is larger than the sum of its proper divisors (85928793).

128310375 is an equidigital number, since it uses as much as digits as its factorization.

128310375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 128310375 is about 11327.4169606314. The cubic root of 128310375 is about 504.3754328218.

The spelling of 128310375 in words is "one hundred twenty-eight million, three hundred ten thousand, three hundred seventy-five".