128683155 has 16 divisors (see below), whose sum is σ = 206753184. Its totient is φ = 68344320.

The previous prime is 128683129. The next prime is 128683193. The reversal of 128683155 is 551386821.

It is not a de Polignac number, because 128683155 - 2⁵ = 128683123 is a prime.

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, 14184 + ... + 21413.

It is an arithmetic number, because the mean of its divisors is an integer number (12922074).

Almost surely, 2^128683155 is an apocalyptic number.

128683155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128683155 is a deficient number, since it is larger than the sum of its proper divisors (78070029).

128683155 is a wasteful number, since it uses less digits than its factorization.

128683155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35846.

The product of its digits is 57600, while the sum is 39.

The square root of 128683155 is about 11343.8597928571. The cubic root of 128683155 is about 504.8634143571.

The spelling of 128683155 in words is "one hundred twenty-eight million, six hundred eighty-three thousand, one hundred fifty-five".