104000491 has 6 divisors (see below), whose sum is σ = 120980220. Its totient is φ = 89143236.

The previous prime is 104000489. The next prime is 104000513. The reversal of 104000491 is 194000401.

It is not a de Polignac number, because 104000491 - 2¹ = 104000489 is a prime.

It is a super-2 number, since 2×104000491² = 21632204256482162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104000401) 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 5 ways as a sum of consecutive naturals, for example, 1061181 + ... + 1061278.

It is an arithmetic number, because the mean of its divisors is an integer number (20163370).

Almost surely, 2^104000491 is an apocalyptic number.

104000491 is a deficient number, since it is larger than the sum of its proper divisors (16979729).

104000491 is an equidigital number, since it uses as much as digits as its factorization.

104000491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122473 (or 2122466 counting only the distinct ones).

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

The square root of 104000491 is about 10198.0631004127. The cubic root of 104000491 is about 470.2676776105.

Adding to 104000491 its reverse (194000401), we get a palindrome (298000892).

The spelling of 104000491 in words is "one hundred four million, four hundred ninety-one", and thus it is an aban number.