1319032909 has 2 divisors, whose sum is σ = 1319032910. Its totient is φ = 1319032908.

The previous prime is 1319032859. The next prime is 1319032927. The reversal of 1319032909 is 9092309131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1105230025 + 213802884 = 33245^2 + 14622^2 .

It is an emirp because it is prime and its reverse (9092309131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1319032909 - 2¹³ = 1319024717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1319035909) 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, 659516454 + 659516455.

It is an arithmetic number, because the mean of its divisors is an integer number (659516455).

Almost surely, 2^1319032909 is an apocalyptic number.

It is an amenable number.

1319032909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1319032909 is an equidigital number, since it uses as much as digits as its factorization.

1319032909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1319032909 is about 36318.4926586994. The cubic root of 1319032909 is about 1096.6933507405.

The spelling of 1319032909 in words is "one billion, three hundred nineteen million, thirty-two thousand, nine hundred nine".