1308347009 has 4 divisors (see below), whose sum is σ = 1308608304. Its totient is φ = 1308085716.

The previous prime is 1308347003. The next prime is 1308347017. The reversal of 1308347009 is 9007438031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1308347009 - 2¹² = 1308342913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1308347009.

It is not an unprimeable number, because it can be changed into a prime (1308347003) 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 in 3 ways as a sum of consecutive naturals, for example, 122987 + ... + 133200.

It is an arithmetic number, because the mean of its divisors is an integer number (327152076).

Almost surely, 2^1308347009 is an apocalyptic number.

It is an amenable number.

1308347009 is a deficient number, since it is larger than the sum of its proper divisors (261295).

1308347009 is an equidigital number, since it uses as much as digits as its factorization.

1308347009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261294.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1308347009 is about 36171.0797322944. The cubic root of 1308347009 is about 1093.7237645995.

The spelling of 1308347009 in words is "one billion, three hundred eight million, three hundred forty-seven thousand, nine".