128119155 has 8 divisors (see below), whose sum is σ = 204990672. Its totient is φ = 68330208.

The previous prime is 128119153. The next prime is 128119169. The reversal of 128119155 is 551911821.

It is a happy number.

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

It is not a de Polignac number, because 128119155 - 2¹ = 128119153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128119153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4270624 + ... + 4270653.

It is an arithmetic number, because the mean of its divisors is an integer number (25623834).

Almost surely, 2^128119155 is an apocalyptic number.

128119155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128119155 is a deficient number, since it is larger than the sum of its proper divisors (76871517).

128119155 is an equidigital number, since it uses as much as digits as its factorization.

128119155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541285.

The product of its digits is 3600, while the sum is 33.

The square root of 128119155 is about 11318.9732308191. The cubic root of 128119155 is about 504.1247525963.

The spelling of 128119155 in words is "one hundred twenty-eight million, one hundred nineteen thousand, one hundred fifty-five".