104312081 has 2 divisors, whose sum is σ = 104312082. Its totient is φ = 104312080.

The previous prime is 104312063. The next prime is 104312083. The reversal of 104312081 is 180213401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103530625 + 781456 = 10175^2 + 884^2 .

It is an emirp because it is prime and its reverse (180213401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104312081 - 2¹⁸ = 104049937 is a prime.

It is a super-2 number, since 2×104312081² = 21762020485101122, which contains 22 as substring.

Together with 104312083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104312083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52156040 + 52156041.

It is an arithmetic number, because the mean of its divisors is an integer number (52156041).

Almost surely, 2^104312081 is an apocalyptic number.

It is an amenable number.

104312081 is a deficient number, since it is larger than the sum of its proper divisors (1).

104312081 is an equidigital number, since it uses as much as digits as its factorization.

104312081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 104312081 is about 10213.3285955167. The cubic root of 104312081 is about 470.7368568419.

Adding to 104312081 its reverse (180213401), we get a palindrome (284525482).

The spelling of 104312081 in words is "one hundred four million, three hundred twelve thousand, eighty-one".