128388295 has 16 divisors (see below), whose sum is σ = 176283648. Its totient is φ = 87933600.

The previous prime is 128388259. The next prime is 128388331. The reversal of 128388295 is 592883821.

It is an interprime number because it is at equal distance from previous prime (128388259) and next prime (128388331).

It is not a de Polignac number, because 128388295 - 2⁷ = 128388167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38692 + ... + 41878.

It is an arithmetic number, because the mean of its divisors is an integer number (11017728).

Almost surely, 2^128388295 is an apocalyptic number.

128388295 is a deficient number, since it is larger than the sum of its proper divisors (47895353).

128388295 is a wasteful number, since it uses less digits than its factorization.

128388295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350.

The product of its digits is 276480, while the sum is 46.

The square root of 128388295 is about 11330.8558811768. The cubic root of 128388295 is about 504.4775107737.

The spelling of 128388295 in words is "one hundred twenty-eight million, three hundred eighty-eight thousand, two hundred ninety-five".