104439189 has 4 divisors (see below), whose sum is σ = 139252256. Its totient is φ = 69626124.

The previous prime is 104439173. The next prime is 104439193. The reversal of 104439189 is 981934401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 104439189 - 2⁴ = 104439173 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 (104439119) 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, 17406529 + ... + 17406534.

It is an arithmetic number, because the mean of its divisors is an integer number (34813064).

Almost surely, 2^104439189 is an apocalyptic number.

It is an amenable number.

104439189 is a deficient number, since it is larger than the sum of its proper divisors (34813067).

104439189 is an equidigital number, since it uses as much as digits as its factorization.

104439189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34813066.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 104439189 is about 10219.5493540567. The cubic root of 104439189 is about 470.9279824616.

The spelling of 104439189 in words is "one hundred four million, four hundred thirty-nine thousand, one hundred eighty-nine".