128319295 has 16 divisors (see below), whose sum is σ = 168551712. Its totient is φ = 93202560.

The previous prime is 128319283. The next prime is 128319311. The reversal of 128319295 is 592913821.

It is not a de Polignac number, because 128319295 - 2¹³ = 128311103 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, 12217 + ... + 20146.

It is an arithmetic number, because the mean of its divisors is an integer number (10534482).

Almost surely, 2^128319295 is an apocalyptic number.

128319295 is a deficient number, since it is larger than the sum of its proper divisors (40232417).

128319295 is a wasteful number, since it uses less digits than its factorization.

128319295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32442.

The product of its digits is 38880, while the sum is 40.

The square root of 128319295 is about 11327.8106887430. The cubic root of 128319295 is about 504.3871204311.

The spelling of 128319295 in words is "one hundred twenty-eight million, three hundred nineteen thousand, two hundred ninety-five".