129971167 has 2 divisors, whose sum is σ = 129971168. Its totient is φ = 129971166.

The previous prime is 129971141. The next prime is 129971207. The reversal of 129971167 is 761179921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129971167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129971117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64985583 + 64985584.

It is an arithmetic number, because the mean of its divisors is an integer number (64985584).

Almost surely, 2^129971167 is an apocalyptic number.

129971167 is a deficient number, since it is larger than the sum of its proper divisors (1).

129971167 is an equidigital number, since it uses as much as digits as its factorization.

129971167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 43.

The square root of 129971167 is about 11400.4897701809. The cubic root of 129971167 is about 506.5422473139.

The spelling of 129971167 in words is "one hundred twenty-nine million, nine hundred seventy-one thousand, one hundred sixty-seven".