128275335 has 12 divisors (see below), whose sum is σ = 222343992. Its totient is φ = 68413488.

The previous prime is 128275333. The next prime is 128275351. The reversal of 128275335 is 533572821.

It is a happy number.

It is not a de Polignac number, because 128275335 - 2¹ = 128275333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128275335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128275333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1425237 + ... + 1425326.

It is an arithmetic number, because the mean of its divisors is an integer number (18528666).

Almost surely, 2^128275335 is an apocalyptic number.

128275335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128275335 is a deficient number, since it is larger than the sum of its proper divisors (94068657).

128275335 is a wasteful number, since it uses less digits than its factorization.

128275335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850574 (or 2850571 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 128275335 is about 11325.8701652456. The cubic root of 128275335 is about 504.3295157134.

The spelling of 128275335 in words is "one hundred twenty-eight million, two hundred seventy-five thousand, three hundred thirty-five".