1324213409 has 2 divisors, whose sum is σ = 1324213410. Its totient is φ = 1324213408.

The previous prime is 1324213349. The next prime is 1324213411. The reversal of 1324213409 is 9043124231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313845009 + 10368400 = 36247^2 + 3220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324213409 - 2²⁸ = 1055777953 is a prime.

Together with 1324213411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1324213459) 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, 662106704 + 662106705.

It is an arithmetic number, because the mean of its divisors is an integer number (662106705).

Almost surely, 2^1324213409 is an apocalyptic number.

It is an amenable number.

1324213409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324213409 is an equidigital number, since it uses as much as digits as its factorization.

1324213409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1324213409 is about 36389.7431840347. The cubic root of 1324213409 is about 1098.1272290838.

The spelling of 1324213409 in words is "one billion, three hundred twenty-four million, two hundred thirteen thousand, four hundred nine".