1324340509 has 2 divisors, whose sum is σ = 1324340510. Its totient is φ = 1324340508.

The previous prime is 1324340461. The next prime is 1324340533. The reversal of 1324340509 is 9050434231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986148409 + 338192100 = 31403^2 + 18390^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324340509 - 2¹¹ = 1324338461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1324340909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662170254 + 662170255.

It is an arithmetic number, because the mean of its divisors is an integer number (662170255).

Almost surely, 2^1324340509 is an apocalyptic number.

It is an amenable number.

1324340509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324340509 is an equidigital number, since it uses as much as digits as its factorization.

1324340509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1324340509 is about 36391.4895133464. The cubic root of 1324340509 is about 1098.1623612623.

The spelling of 1324340509 in words is "one billion, three hundred twenty-four million, three hundred forty thousand, five hundred nine".