13200409 has 2 divisors, whose sum is σ = 13200410. Its totient is φ = 13200408.

The previous prime is 13200359. The next prime is 13200431. The reversal of 13200409 is 90400231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13162384 + 38025 = 3628^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 13200409 - 2⁷ = 13200281 is a prime.

It is not a weakly prime, because it can be changed into another prime (13200469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600204 + 6600205.

It is an arithmetic number, because the mean of its divisors is an integer number (6600205).

Almost surely, 2^13200409 is an apocalyptic number.

It is an amenable number.

13200409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13200409 is an equidigital number, since it uses as much as digits as its factorization.

13200409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 13200409 is about 3633.2367112535. The cubic root of 13200409 is about 236.3355909839.

The spelling of 13200409 in words is "thirteen million, two hundred thousand, four hundred nine".