1343055209 has 2 divisors, whose sum is σ = 1343055210. Its totient is φ = 1343055208.

The previous prime is 1343055151. The next prime is 1343055211. The reversal of 1343055209 is 9025503431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 935136400 + 407918809 = 30580^2 + 20197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343055209 is a prime.

It is a Sophie Germain prime.

Together with 1343055211, 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 (1343055269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671527604 + 671527605.

It is an arithmetic number, because the mean of its divisors is an integer number (671527605).

Almost surely, 2^1343055209 is an apocalyptic number.

It is an amenable number.

1343055209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343055209 is an equidigital number, since it uses as much as digits as its factorization.

1343055209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1343055209 is about 36647.7176506259. The cubic root of 1343055209 is about 1103.3110179970.

The spelling of 1343055209 in words is "one billion, three hundred forty-three million, fifty-five thousand, two hundred nine".