128050923 has 32 divisors (see below), whose sum is σ = 229243392. Its totient is φ = 61401600.

The previous prime is 128050891. The next prime is 128050957. The reversal of 128050923 is 329050821.

It is a happy number.

It is not a de Polignac number, because 128050923 - 2⁵ = 128050891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128050963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18318 + ... + 24323.

It is an arithmetic number, because the mean of its divisors is an integer number (7163856).

Almost surely, 2^128050923 is an apocalyptic number.

128050923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128050923 is a deficient number, since it is larger than the sum of its proper divisors (101192469).

128050923 is a wasteful number, since it uses less digits than its factorization.

128050923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42675.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 128050923 is about 11315.9587751105. The cubic root of 128050923 is about 504.0352433468.

The spelling of 128050923 in words is "one hundred twenty-eight million, fifty thousand, nine hundred twenty-three".