104247445 has 4 divisors (see below), whose sum is σ = 125096940. Its totient is φ = 83397952.

The previous prime is 104247443. The next prime is 104247469. The reversal of 104247445 is 544742401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19864849 + 84382596 = 4457^2 + 9186^2 .

It is a cyclic number.

It is not a de Polignac number, because 104247445 - 2¹ = 104247443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104247443) 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 in 3 ways as a sum of consecutive naturals, for example, 10424740 + ... + 10424749.

It is an arithmetic number, because the mean of its divisors is an integer number (31274235).

Almost surely, 2^104247445 is an apocalyptic number.

It is an amenable number.

104247445 is a deficient number, since it is larger than the sum of its proper divisors (20849495).

104247445 is an equidigital number, since it uses as much as digits as its factorization.

104247445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20849494.

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 104247445 is about 10210.1638086761. The cubic root of 104247445 is about 470.6396075305.

Adding to 104247445 its reverse (544742401), we get a palindrome (648989846).

The spelling of 104247445 in words is "one hundred four million, two hundred forty-seven thousand, four hundred forty-five".