128068029 has 6 divisors (see below), whose sum is σ = 184987166. Its totient is φ = 85378680.

The previous prime is 128068027. The next prime is 128068069. The reversal of 128068029 is 920860821.

It can be written as a sum of positive squares in only one way, i.e., 126562500 + 1505529 = 11250^2 + 1227^2 .

It is not a de Polignac number, because 128068029 - 2¹ = 128068027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128067984 and 128068002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128068027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7114882 + ... + 7114899.

Almost surely, 2^128068029 is an apocalyptic number.

It is an amenable number.

128068029 is a deficient number, since it is larger than the sum of its proper divisors (56919137).

128068029 is a wasteful number, since it uses less digits than its factorization.

128068029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14229787 (or 14229784 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 128068029 is about 11316.7145850728. The cubic root of 128068029 is about 504.0576866133.

The spelling of 128068029 in words is "one hundred twenty-eight million, sixty-eight thousand, twenty-nine".