104421425 has 12 divisors (see below), whose sum is σ = 129747276. Its totient is φ = 83366400.

The previous prime is 104421389. The next prime is 104421479. The reversal of 104421425 is 524124401.

It can be written as a sum of positive squares in 6 ways, for example, as 4661281 + 99760144 = 2159^2 + 9988^2 .

It is not a de Polignac number, because 104421425 - 2¹² = 104417329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104421425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9017 + ... + 17033.

It is an arithmetic number, because the mean of its divisors is an integer number (10812273).

Almost surely, 2^104421425 is an apocalyptic number.

It is an amenable number.

104421425 is a deficient number, since it is larger than the sum of its proper divisors (25325851).

104421425 is an equidigital number, since it uses as much as digits as its factorization.

104421425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8548 (or 8543 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 104421425 is about 10218.6801985384. The cubic root of 104421425 is about 470.9012809935.

Adding to 104421425 its reverse (524124401), we get a palindrome (628545826).

The spelling of 104421425 in words is "one hundred four million, four hundred twenty-one thousand, four hundred twenty-five".