104491 has 2 divisors, whose sum is σ = 104492. Its totient is φ = 104490.

The previous prime is 104479. The next prime is 104513. The reversal of 104491 is 194401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104491 - 2⁵ = 104459 is a prime.

It is not a weakly prime, because it can be changed into another prime (104471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52245 + 52246.

It is an arithmetic number, because the mean of its divisors is an integer number (52246).

2¹⁰⁴⁴⁹¹ is an apocalyptic number.

104491 is a deficient number, since it is larger than the sum of its proper divisors (1).

104491 is an equidigital number, since it uses as much as digits as its factorization.

104491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 104491 is about 323.2506767201. The cubic root of 104491 is about 47.1005843452.

Adding to 104491 its reverse (194401), we get a palindrome (298892).

It can be divided in two parts, 104 and 491, that added together give a palindrome (595).

The spelling of 104491 in words is "one hundred four thousand, four hundred ninety-one".