1327734509 has 2 divisors, whose sum is σ = 1327734510. Its totient is φ = 1327734508.

The previous prime is 1327734503. The next prime is 1327734517. The reversal of 1327734509 is 9054377231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1324741609 + 2992900 = 36397^2 + 1730^2 .

It is an emirp because it is prime and its reverse (9054377231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1327734509 - 2⁸ = 1327734253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1327734503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663867254 + 663867255.

It is an arithmetic number, because the mean of its divisors is an integer number (663867255).

Almost surely, 2^1327734509 is an apocalyptic number.

It is an amenable number.

1327734509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1327734509 is an equidigital number, since it uses as much as digits as its factorization.

1327734509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 1327734509 is about 36438.0914566062. The cubic root of 1327734509 is about 1099.0996790145.

The spelling of 1327734509 in words is "one billion, three hundred twenty-seven million, seven hundred thirty-four thousand, five hundred nine".