129054017 has 2 divisors, whose sum is σ = 129054018. Its totient is φ = 129054016.

The previous prime is 129054011. The next prime is 129054041. The reversal of 129054017 is 710450921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123298816 + 5755201 = 11104^2 + 2399^2 .

It is a cyclic number.

It is not a de Polignac number, because 129054017 - 2¹⁰ = 129052993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129054011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64527008 + 64527009.

It is an arithmetic number, because the mean of its divisors is an integer number (64527009).

Almost surely, 2^129054017 is an apocalyptic number.

It is an amenable number.

129054017 is a deficient number, since it is larger than the sum of its proper divisors (1).

129054017 is an equidigital number, since it uses as much as digits as its factorization.

129054017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 129054017 is about 11360.1944085478. The cubic root of 129054017 is about 505.3479509030.

The spelling of 129054017 in words is "one hundred twenty-nine million, fifty-four thousand, seventeen".