1341209 has 2 divisors, whose sum is σ = 1341210. Its totient is φ = 1341208.

The previous prime is 1341203. The next prime is 1341217. The reversal of 1341209 is 9021431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1315609 + 25600 = 1147^2 + 160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1341209 is a prime.

It is a Chen prime.

It is equal to p₁₀₂₉₄₄ and since 1341209 and 102944 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1341203) 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, 670604 + 670605.

It is an arithmetic number, because the mean of its divisors is an integer number (670605).

2^1341209 is an apocalyptic number.

It is an amenable number.

1341209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341209 is an equidigital number, since it uses as much as digits as its factorization.

1341209 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 20.

The square root of 1341209 is about 1158.1057810062. The cubic root of 1341209 is about 110.2805236656.

The spelling of 1341209 in words is "one million, three hundred forty-one thousand, two hundred nine".