104138843 has 4 divisors (see below), whose sum is σ = 104933928. Its totient is φ = 103343760.

The previous prime is 104138809. The next prime is 104138851. The reversal of 104138843 is 348831401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348831401 = 29 ⋅12028669.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104138843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104138803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397346 + ... + 397607.

It is an arithmetic number, because the mean of its divisors is an integer number (26233482).

Almost surely, 2^104138843 is an apocalyptic number.

104138843 is a deficient number, since it is larger than the sum of its proper divisors (795085).

104138843 is an equidigital number, since it uses as much as digits as its factorization.

104138843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795084.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 104138843 is about 10204.8440948404. The cubic root of 104138843 is about 470.4761177935.

The spelling of 104138843 in words is "one hundred four million, one hundred thirty-eight thousand, eight hundred forty-three".