104313221 has 2 divisors, whose sum is σ = 104313222. Its totient is φ = 104313220.

The previous prime is 104313193. The next prime is 104313229. The reversal of 104313221 is 122313401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68145025 + 36168196 = 8255^2 + 6014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104313221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104313221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104313229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52156610 + 52156611.

It is an arithmetic number, because the mean of its divisors is an integer number (52156611).

Almost surely, 2^104313221 is an apocalyptic number.

It is an amenable number.

104313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

104313221 is an equidigital number, since it uses as much as digits as its factorization.

104313221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 104313221 is about 10213.3844047896. The cubic root of 104313221 is about 470.7385716898.

Adding to 104313221 its reverse (122313401), we get a palindrome (226626622).

The spelling of 104313221 in words is "one hundred four million, three hundred thirteen thousand, two hundred twenty-one".