104143217 has 2 divisors, whose sum is σ = 104143218. Its totient is φ = 104143216.

The previous prime is 104143159. The next prime is 104143219. The reversal of 104143217 is 712341401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57138481 + 47004736 = 7559^2 + 6856^2 .

It is an emirp because it is prime and its reverse (712341401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104143217 - 2¹⁴ = 104126833 is a prime.

Together with 104143219, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 104143192 and 104143201.

It is not a weakly prime, because it can be changed into another prime (104143219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52071608 + 52071609.

It is an arithmetic number, because the mean of its divisors is an integer number (52071609).

Almost surely, 2^104143217 is an apocalyptic number.

It is an amenable number.

104143217 is a deficient number, since it is larger than the sum of its proper divisors (1).

104143217 is an equidigital number, since it uses as much as digits as its factorization.

104143217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 104143217 is about 10205.0584025766. The cubic root of 104143217 is about 470.4827046209.

Adding to 104143217 its reverse (712341401), we get a palindrome (816484618).

It can be divided in two parts, 10414 and 3217, that added together give a palindrome (13631).

The spelling of 104143217 in words is "one hundred four million, one hundred forty-three thousand, two hundred seventeen".