104513309 has 2 divisors, whose sum is σ = 104513310. Its totient is φ = 104513308.

The previous prime is 104513273. The next prime is 104513317. The reversal of 104513309 is 903315401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104489284 + 24025 = 10222^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 104513309 - 2²⁰ = 103464733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104513359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52256654 + 52256655.

It is an arithmetic number, because the mean of its divisors is an integer number (52256655).

Almost surely, 2^104513309 is an apocalyptic number.

It is an amenable number.

104513309 is a deficient number, since it is larger than the sum of its proper divisors (1).

104513309 is an equidigital number, since it uses as much as digits as its factorization.

104513309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 104513309 is about 10223.1750938737. The cubic root of 104513309 is about 471.0393612404.

The spelling of 104513309 in words is "one hundred four million, five hundred thirteen thousand, three hundred nine".