104105421 has 24 divisors (see below), whose sum is σ = 172523520. Its totient is φ = 59258016.

The previous prime is 104105401. The next prime is 104105497. The reversal of 104105421 is 124501401.

It is not a de Polignac number, because 104105421 - 2⁶ = 104105357 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 104105394 and 104105403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104105401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13876 + ... + 20018.

It is an arithmetic number, because the mean of its divisors is an integer number (7188480).

Almost surely, 2^104105421 is an apocalyptic number.

It is an amenable number.

104105421 is a deficient number, since it is larger than the sum of its proper divisors (68418099).

104105421 is a wasteful number, since it uses less digits than its factorization.

104105421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425 (or 6422 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 104105421 is about 10203.2064077916. The cubic root of 104105421 is about 470.4257813554.

Adding to 104105421 its reverse (124501401), we get a palindrome (228606822).

The spelling of 104105421 in words is "one hundred four million, one hundred five thousand, four hundred twenty-one".