129100163 has 2 divisors, whose sum is σ = 129100164. Its totient is φ = 129100162.

The previous prime is 129100157. The next prime is 129100171. The reversal of 129100163 is 361001921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129100163 - 2⁶ = 129100099 is a prime.

It is not a weakly prime, because it can be changed into another prime (129100123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64550081 + 64550082.

It is an arithmetic number, because the mean of its divisors is an integer number (64550082).

Almost surely, 2^129100163 is an apocalyptic number.

129100163 is a deficient number, since it is larger than the sum of its proper divisors (1).

129100163 is an equidigital number, since it uses as much as digits as its factorization.

129100163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 129100163 is about 11362.2252662056. The cubic root of 129100163 is about 505.4081763500.

The spelling of 129100163 in words is "one hundred twenty-nine million, one hundred thousand, one hundred sixty-three".