104839181 has 2 divisors, whose sum is σ = 104839182. Its totient is φ = 104839180.

The previous prime is 104839171. The next prime is 104839183. The reversal of 104839181 is 181938401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101808100 + 3031081 = 10090^2 + 1741^2 .

It is a cyclic number.

It is not a de Polignac number, because 104839181 - 2¹⁴ = 104822797 is a prime.

It is a super-2 number, since 2×104839181² = 21982507745501522, which contains 22 as substring.

Together with 104839183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104839183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52419590 + 52419591.

It is an arithmetic number, because the mean of its divisors is an integer number (52419591).

Almost surely, 2^104839181 is an apocalyptic number.

It is an amenable number.

104839181 is a deficient number, since it is larger than the sum of its proper divisors (1).

104839181 is an equidigital number, since it uses as much as digits as its factorization.

104839181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 104839181 is about 10239.1005952671. The cubic root of 104839181 is about 471.5284194604.

The spelling of 104839181 in words is "one hundred four million, eight hundred thirty-nine thousand, one hundred eighty-one".