104204257 has 2 divisors, whose sum is σ = 104204258. Its totient is φ = 104204256.

The previous prime is 104204251. The next prime is 104204267. The reversal of 104204257 is 752402401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95961616 + 8242641 = 9796^2 + 2871^2 .

It is an emirp because it is prime and its reverse (752402401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104204257 - 2¹¹ = 104202209 is a prime.

It is not a weakly prime, because it can be changed into another prime (104204251) 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, 52102128 + 52102129.

It is an arithmetic number, because the mean of its divisors is an integer number (52102129).

Almost surely, 2^104204257 is an apocalyptic number.

It is an amenable number.

104204257 is a deficient number, since it is larger than the sum of its proper divisors (1).

104204257 is an equidigital number, since it uses as much as digits as its factorization.

104204257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 104204257 is about 10208.0486382070. The cubic root of 104204257 is about 470.5746058065.

Adding to 104204257 its reverse (752402401), we get a palindrome (856606658).

The spelling of 104204257 in words is "one hundred four million, two hundred four thousand, two hundred fifty-seven".