104209124609 has 2 divisors, whose sum is σ = 104209124610. Its totient is φ = 104209124608.

The previous prime is 104209124587. The next prime is 104209124627. The reversal of 104209124609 is 906421902401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76658104384 + 27551020225 = 276872^2 + 165985^2 .

It is a cyclic number.

It is not a de Polignac number, because 104209124609 - 2⁸ = 104209124353 is a prime.

It is not a weakly prime, because it can be changed into another prime (104209124909) 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, 52104562304 + 52104562305.

It is an arithmetic number, because the mean of its divisors is an integer number (52104562305).

Almost surely, 2^104209124609 is an apocalyptic number.

It is an amenable number.

104209124609 is a deficient number, since it is larger than the sum of its proper divisors (1).

104209124609 is an equidigital number, since it uses as much as digits as its factorization.

104209124609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 104209124609 in words is "one hundred four billion, two hundred nine million, one hundred twenty-four thousand, six hundred nine".