128748034 has 4 divisors (see below), whose sum is σ = 193122054. Its totient is φ = 64374016.

The previous prime is 128748029. The next prime is 128748041. The reversal of 128748034 is 430847821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430847821 = 2293 ⋅187897.

It can be written as a sum of positive squares in only one way, i.e., 122168809 + 6579225 = 11053^2 + 2565^2 .

It is a junction number, because it is equal to n+sod(n) for n = 128747984 and 128748002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32187007 + ... + 32187010.

Almost surely, 2^128748034 is an apocalyptic number.

128748034 is a deficient number, since it is larger than the sum of its proper divisors (64374020).

128748034 is an equidigital number, since it uses as much as digits as its factorization.

128748034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64374019.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 128748034 is about 11346.7190852687. The cubic root of 128748034 is about 504.9482468286.

The spelling of 128748034 in words is "one hundred twenty-eight million, seven hundred forty-eight thousand, thirty-four".