104112391 has 8 divisors (see below), whose sum is σ = 105298704. Its totient is φ = 102930240.

The previous prime is 104112377. The next prime is 104112397. The reversal of 104112391 is 193211401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104112391 - 2¹¹ = 104110343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104112397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101461 + ... + 102481.

It is an arithmetic number, because the mean of its divisors is an integer number (13162338).

Almost surely, 2^104112391 is an apocalyptic number.

104112391 is a deficient number, since it is larger than the sum of its proper divisors (1186313).

104112391 is a wasteful number, since it uses less digits than its factorization.

104112391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 104112391 is about 10203.5479613711. The cubic root of 104112391 is about 470.4362796705.

Adding to 104112391 its reverse (193211401), we get a palindrome (297323792).

The spelling of 104112391 in words is "one hundred four million, one hundred twelve thousand, three hundred ninety-one".