128834029 has 2 divisors, whose sum is σ = 128834030. Its totient is φ = 128834028.

The previous prime is 128834023. The next prime is 128834081. The reversal of 128834029 is 920438821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81540900 + 47293129 = 9030^2 + 6877^2 .

It is a cyclic number.

It is not a de Polignac number, because 128834029 - 2¹¹ = 128831981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128834023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64417014 + 64417015.

It is an arithmetic number, because the mean of its divisors is an integer number (64417015).

Almost surely, 2^128834029 is an apocalyptic number.

It is an amenable number.

128834029 is a deficient number, since it is larger than the sum of its proper divisors (1).

128834029 is an equidigital number, since it uses as much as digits as its factorization.

128834029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 128834029 is about 11350.5078740997. The cubic root of 128834029 is about 505.0606455939.

The spelling of 128834029 in words is "one hundred twenty-eight million, eight hundred thirty-four thousand, twenty-nine".