129098107 has 2 divisors, whose sum is σ = 129098108. Its totient is φ = 129098106.

The previous prime is 129098071. The next prime is 129098131. The reversal of 129098107 is 701890921.

Together with previous prime (129098071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (701890921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129098107 - 2²³ = 120709499 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (129098147) 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, 64549053 + 64549054.

It is an arithmetic number, because the mean of its divisors is an integer number (64549054).

Almost surely, 2^129098107 is an apocalyptic number.

129098107 is a deficient number, since it is larger than the sum of its proper divisors (1).

129098107 is an equidigital number, since it uses as much as digits as its factorization.

129098107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 129098107 is about 11362.1347906104. The cubic root of 129098107 is about 505.4054933564.

The spelling of 129098107 in words is "one hundred twenty-nine million, ninety-eight thousand, one hundred seven".