129638059 has 2 divisors, whose sum is σ = 129638060. Its totient is φ = 129638058.

The previous prime is 129638057. The next prime is 129638081. The reversal of 129638059 is 950836921.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (950836921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129638059 - 2¹ = 129638057 is a prime.

Together with 129638057, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (129638057) 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 as a sum of consecutive naturals, namely, 64819029 + 64819030.

It is an arithmetic number, because the mean of its divisors is an integer number (64819030).

Almost surely, 2^129638059 is an apocalyptic number.

129638059 is a deficient number, since it is larger than the sum of its proper divisors (1).

129638059 is an equidigital number, since it uses as much as digits as its factorization.

129638059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 129638059 is about 11385.8710250907. The cubic root of 129638059 is about 506.1091316843.

The spelling of 129638059 in words is "one hundred twenty-nine million, six hundred thirty-eight thousand, fifty-nine".