129069158401 has 4 divisors (see below), whose sum is σ = 129070084032. Its totient is φ = 129068232772.

The previous prime is 129069158377. The next prime is 129069158417. The reversal of 129069158401 is 104851960921.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 104851960921 = 19 ⋅5518524259.

It is a cyclic number.

It is not a de Polignac number, because 129069158401 - 2⁵ = 129069158369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129069158461) 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, 206245 + ... + 548338.

It is an arithmetic number, because the mean of its divisors is an integer number (32267521008).

Almost surely, 2^129069158401 is an apocalyptic number.

It is an amenable number.

129069158401 is a deficient number, since it is larger than the sum of its proper divisors (925631).

129069158401 is an equidigital number, since it uses as much as digits as its factorization.

129069158401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925630.

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 129069158401 in words is "one hundred twenty-nine billion, sixty-nine million, one hundred fifty-eight thousand, four hundred one".