104425021 has 2 divisors, whose sum is σ = 104425022. Its totient is φ = 104425020.

The previous prime is 104425003. The next prime is 104425031. The reversal of 104425021 is 120524401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104325796 + 99225 = 10214^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 104425021 - 2¹⁷ = 104293949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104425021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104425031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52212510 + 52212511.

It is an arithmetic number, because the mean of its divisors is an integer number (52212511).

Almost surely, 2^104425021 is an apocalyptic number.

It is an amenable number.

104425021 is a deficient number, since it is larger than the sum of its proper divisors (1).

104425021 is an equidigital number, since it uses as much as digits as its factorization.

104425021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 104425021 is about 10218.8561492958. The cubic root of 104425021 is about 470.9066864665.

Adding to 104425021 its reverse (120524401), we get a palindrome (224949422).

The spelling of 104425021 in words is "one hundred four million, four hundred twenty-five thousand, twenty-one".