129056107 has 2 divisors, whose sum is σ = 129056108. Its totient is φ = 129056106.

The previous prime is 129056101. The next prime is 129056143. The reversal of 129056107 is 701650921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129056107 - 2³ = 129056099 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 (129056101) 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, 64528053 + 64528054.

It is an arithmetic number, because the mean of its divisors is an integer number (64528054).

Almost surely, 2^129056107 is an apocalyptic number.

129056107 is a deficient number, since it is larger than the sum of its proper divisors (1).

129056107 is an equidigital number, since it uses as much as digits as its factorization.

129056107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 129056107 is about 11360.2863960377. The cubic root of 129056107 is about 505.3506788860.

The spelling of 129056107 in words is "one hundred twenty-nine million, fifty-six thousand, one hundred seven".