128704295 has 4 divisors (see below), whose sum is σ = 154445160. Its totient is φ = 102963432.

The previous prime is 128704273. The next prime is 128704313. The reversal of 128704295 is 592407821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 592407821 = 19 ⋅31179359.

It is a cyclic number.

It is not a de Polignac number, because 128704295 - 2¹² = 128700199 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12870425 + ... + 12870434.

It is an arithmetic number, because the mean of its divisors is an integer number (38611290).

Almost surely, 2^128704295 is an apocalyptic number.

128704295 is a deficient number, since it is larger than the sum of its proper divisors (25740865).

128704295 is an equidigital number, since it uses as much as digits as its factorization.

128704295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25740864.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 128704295 is about 11344.7915362073. The cubic root of 128704295 is about 504.8910590741.

The spelling of 128704295 in words is "one hundred twenty-eight million, seven hundred four thousand, two hundred ninety-five".