128117335 has 4 divisors (see below), whose sum is σ = 153740808. Its totient is φ = 102493864.

The previous prime is 128117317. The next prime is 128117351. The reversal of 128117335 is 533711821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128117335 - 2⁷ = 128117207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128117297 and 128117306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12811729 + ... + 12811738.

It is an arithmetic number, because the mean of its divisors is an integer number (38435202).

Almost surely, 2^128117335 is an apocalyptic number.

128117335 is a deficient number, since it is larger than the sum of its proper divisors (25623473).

128117335 is an equidigital number, since it uses as much as digits as its factorization.

128117335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25623472.

The product of its digits is 5040, while the sum is 31.

The square root of 128117335 is about 11318.8928345488. The cubic root of 128117335 is about 504.1223654659.

The spelling of 128117335 in words is "one hundred twenty-eight million, one hundred seventeen thousand, three hundred thirty-five".