129358290161 has 4 divisors (see below), whose sum is σ = 129381734400. Its totient is φ = 129334845924.

The previous prime is 129358290157. The next prime is 129358290163. The reversal of 129358290161 is 161092853921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 129358290161 - 2² = 129358290157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129358290163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11713841 + ... + 11724878.

It is an arithmetic number, because the mean of its divisors is an integer number (32345433600).

Almost surely, 2^129358290161 is an apocalyptic number.

It is an amenable number.

129358290161 is a deficient number, since it is larger than the sum of its proper divisors (23444239).

129358290161 is an equidigital number, since it uses as much as digits as its factorization.

129358290161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23444238.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 129358290161 in words is "one hundred twenty-nine billion, three hundred fifty-eight million, two hundred ninety thousand, one hundred sixty-one".