129159927174127 has 2 divisors, whose sum is σ = 129159927174128. Its totient is φ = 129159927174126.

The previous prime is 129159927174097. The next prime is 129159927174137. The reversal of 129159927174127 is 721471729951921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129159927174127 - 2⁷ = 129159927173999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129159927174137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64579963587063 + 64579963587064.

It is an arithmetic number, because the mean of its divisors is an integer number (64579963587064).

Almost surely, 2^{129159927174127} is an apocalyptic number.

129159927174127 is a deficient number, since it is larger than the sum of its proper divisors (1).

129159927174127 is an equidigital number, since it uses as much as digits as its factorization.

129159927174127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40007520, while the sum is 67.

The spelling of 129159927174127 in words is "one hundred twenty-nine trillion, one hundred fifty-nine billion, nine hundred twenty-seven million, one hundred seventy-four thousand, one hundred twenty-seven".