104456221 has 2 divisors, whose sum is σ = 104456222. Its totient is φ = 104456220.

The previous prime is 104456207. The next prime is 104456227. The reversal of 104456221 is 122654401.

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., 85192900 + 19263321 = 9230^2 + 4389^2 .

It is an emirp because it is prime and its reverse (122654401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104456221 - 2²³ = 96067613 is a prime.

It is a super-2 number, since 2×104456221² = 21822204211201682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104456227) 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, 52228110 + 52228111.

It is an arithmetic number, because the mean of its divisors is an integer number (52228111).

Almost surely, 2^104456221 is an apocalyptic number.

It is an amenable number.

104456221 is a deficient number, since it is larger than the sum of its proper divisors (1).

104456221 is an equidigital number, since it uses as much as digits as its factorization.

104456221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 104456221 is about 10220.3826249314. The cubic root of 104456221 is about 470.9535808010.

The spelling of 104456221 in words is "one hundred four million, four hundred fifty-six thousand, two hundred twenty-one".