128366375 has 16 divisors (see below), whose sum is σ = 168636000. Its totient is φ = 97286400.

The previous prime is 128366369. The next prime is 128366401. The reversal of 128366375 is 573663821.

It is not a de Polignac number, because 128366375 - 2¹⁶ = 128300839 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24650 + ... + 29399.

It is an arithmetic number, because the mean of its divisors is an integer number (10539750).

Almost surely, 2^128366375 is an apocalyptic number.

128366375 is a deficient number, since it is larger than the sum of its proper divisors (40269625).

128366375 is an equidigital number, since it uses as much as digits as its factorization.

128366375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54083 (or 54073 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 128366375 is about 11329.8885696197. Note that the first 3 decimals coincide. The cubic root of 128366375 is about 504.4487989756.

The spelling of 128366375 in words is "one hundred twenty-eight million, three hundred sixty-six thousand, three hundred seventy-five".