129013847161 has 32 divisors (see below), whose sum is σ = 142516699776. Its totient is φ = 116290944000.

The previous prime is 129013847147. The next prime is 129013847201. The reversal of 129013847161 is 161748310921.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 129013847161 - 2⁵ = 129013847129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129013827161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14755251 + ... + 14763991.

It is an arithmetic number, because the mean of its divisors is an integer number (4453646868).

Almost surely, 2^129013847161 is an apocalyptic number.

It is an amenable number.

129013847161 is a deficient number, since it is larger than the sum of its proper divisors (13502852615).

129013847161 is a wasteful number, since it uses less digits than its factorization.

129013847161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9193.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 129013847161 in words is "one hundred twenty-nine billion, thirteen million, eight hundred forty-seven thousand, one hundred sixty-one".