104413643161 has 3 divisors (see below), whose sum is σ = 104413966293. Its totient is φ = 104413320030.

The previous prime is 104413643149. The next prime is 104413643179. The reversal of 104413643161 is 161346314401.

The square root of 104413643161 is 323131.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 104413643161 - 2²¹ = 104411546009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104413643101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 161566 + ... + 484696.

It is an arithmetic number, because the mean of its divisors is an integer number (34804655431).

Almost surely, 2^104413643161 is an apocalyptic number.

104413643161 is the 323131-st square number.

104413643161 is the 161566-th centered octagonal number.

It is an amenable number.

104413643161 is a deficient number, since it is larger than the sum of its proper divisors (323132).

104413643161 is an frugal number, since it uses more digits than its factorization.

104413643161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646262 (or 323131 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 104413643161 its reverse (161346314401), we get a palindrome (265759957562).

The spelling of 104413643161 in words is "one hundred four billion, four hundred thirteen million, six hundred forty-three thousand, one hundred sixty-one".