129327047 has 2 divisors, whose sum is σ = 129327048. Its totient is φ = 129327046.

The previous prime is 129327017. The next prime is 129327061. The reversal of 129327047 is 740723921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129327047 - 2¹⁰ = 129326023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129326998 and 129327016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129327017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64663523 + 64663524.

It is an arithmetic number, because the mean of its divisors is an integer number (64663524).

Almost surely, 2^129327047 is an apocalyptic number.

129327047 is a deficient number, since it is larger than the sum of its proper divisors (1).

129327047 is an equidigital number, since it uses as much as digits as its factorization.

129327047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 129327047 is about 11372.2050192564. The cubic root of 129327047 is about 505.7040755893.

The spelling of 129327047 in words is "one hundred twenty-nine million, three hundred twenty-seven thousand, forty-seven".