128648119 has 16 divisors (see below), whose sum is σ = 136279584. Its totient is φ = 121305600.

The previous prime is 128648101. The next prime is 128648123. The reversal of 128648119 is 911846821.

It is a cyclic number.

It is not a de Polignac number, because 128648119 - 2⁷ = 128647991 is a prime.

It is a super-2 number, since 2×128648119² = 33100677044476322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128648719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158224 + ... + 159034.

It is an arithmetic number, because the mean of its divisors is an integer number (8517474).

Almost surely, 2^128648119 is an apocalyptic number.

128648119 is a deficient number, since it is larger than the sum of its proper divisors (7631465).

128648119 is an equidigital number, since it uses as much as digits as its factorization.

128648119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978.

The product of its digits is 27648, while the sum is 40.

The square root of 128648119 is about 11342.3154161750. The cubic root of 128648119 is about 504.8175912133.

The spelling of 128648119 in words is "one hundred twenty-eight million, six hundred forty-eight thousand, one hundred nineteen".