128047135 has 8 divisors (see below), whose sum is σ = 153757296. Its totient is φ = 102370560.

The previous prime is 128047109. The next prime is 128047177. The reversal of 128047135 is 531740821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128047135 - 2⁹ = 128046623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128047097 and 128047106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940 + ... + 16030.

It is an arithmetic number, because the mean of its divisors is an integer number (19219662).

Almost surely, 2^128047135 is an apocalyptic number.

128047135 is a deficient number, since it is larger than the sum of its proper divisors (25710161).

128047135 is a wasteful number, since it uses less digits than its factorization.

128047135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16793.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 128047135 is about 11315.7913996326. The cubic root of 128047135 is about 504.0302731774.

Adding to 128047135 its reverse (531740821), we get a palindrome (659787956).

The spelling of 128047135 in words is "one hundred twenty-eight million, forty-seven thousand, one hundred thirty-five".