129750067 has 2 divisors, whose sum is σ = 129750068. Its totient is φ = 129750066.

The previous prime is 129750053. The next prime is 129750073. The reversal of 129750067 is 760057921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129750067 is a prime.

It is not a weakly prime, because it can be changed into another prime (129750007) 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, 64875033 + 64875034.

It is an arithmetic number, because the mean of its divisors is an integer number (64875034).

Almost surely, 2^129750067 is an apocalyptic number.

129750067 is a deficient number, since it is larger than the sum of its proper divisors (1).

129750067 is an equidigital number, since it uses as much as digits as its factorization.

129750067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 129750067 is about 11390.7886908677. The cubic root of 129750067 is about 506.2548500882.

The spelling of 129750067 in words is "one hundred twenty-nine million, seven hundred fifty thousand, sixty-seven".