128333855 has 16 divisors (see below), whose sum is σ = 166731264. Its totient is φ = 94264320.

The previous prime is 128333827. The next prime is 128333869. The reversal of 128333855 is 558333821.

It is a de Polignac number, because none of the positive numbers 2^k-128333855 is a prime.

It is a super-2 number, since 2×128333855² = 32939156678322050, which contains 22 as substring.

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, 7247 + ... + 17583.

It is an arithmetic number, because the mean of its divisors is an integer number (10420704).

Almost surely, 2^128333855 is an apocalyptic number.

128333855 is a deficient number, since it is larger than the sum of its proper divisors (38397409).

128333855 is a wasteful number, since it uses less digits than its factorization.

128333855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10546.

The product of its digits is 86400, while the sum is 38.

The square root of 128333855 is about 11328.4533366210. The cubic root of 128333855 is about 504.4061968003.

The spelling of 128333855 in words is "one hundred twenty-eight million, three hundred thirty-three thousand, eight hundred fifty-five".