104202209 has 2 divisors, whose sum is σ = 104202210. Its totient is φ = 104202208.

The previous prime is 104202173. The next prime is 104202211. The reversal of 104202209 is 902202401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102070609 + 2131600 = 10103^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 104202209 - 2²⁴ = 87424993 is a prime.

It is a Sophie Germain prime.

Together with 104202211, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (104202229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52101104 + 52101105.

It is an arithmetic number, because the mean of its divisors is an integer number (52101105).

Almost surely, 2^104202209 is an apocalyptic number.

It is an amenable number.

104202209 is a deficient number, since it is larger than the sum of its proper divisors (1).

104202209 is an equidigital number, since it uses as much as digits as its factorization.

104202209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 104202209 is about 10207.9483247125. The cubic root of 104202209 is about 470.5715229411.

The spelling of 104202209 in words is "one hundred four million, two hundred two thousand, two hundred nine".