129013847147 has 2 divisors, whose sum is σ = 129013847148. Its totient is φ = 129013847146.

The previous prime is 129013847129. The next prime is 129013847201. The reversal of 129013847147 is 741748310921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129013847147 - 2¹⁰ = 129013846123 is a prime.

It is not a weakly prime, because it can be changed into another prime (129013847447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64506923573 + 64506923574.

It is an arithmetic number, because the mean of its divisors is an integer number (64506923574).

Almost surely, 2^129013847147 is an apocalyptic number.

129013847147 is a deficient number, since it is larger than the sum of its proper divisors (1).

129013847147 is an equidigital number, since it uses as much as digits as its factorization.

129013847147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 129013847147 in words is "one hundred twenty-nine billion, thirteen million, eight hundred forty-seven thousand, one hundred forty-seven".