1309328907 has 8 divisors (see below), whose sum is σ = 1778711184. Its totient is φ = 856416288.

The previous prime is 1309328873. The next prime is 1309328921. The reversal of 1309328907 is 7098239031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1309328907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1309328947) 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 in 7 ways as a sum of consecutive naturals, for example, 4117228 + ... + 4117545.

It is an arithmetic number, because the mean of its divisors is an integer number (222338898).

Almost surely, 2^1309328907 is an apocalyptic number.

1309328907 is a deficient number, since it is larger than the sum of its proper divisors (469382277).

1309328907 is an equidigital number, since it uses as much as digits as its factorization.

1309328907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234829.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1309328907 is about 36184.6501572145. The cubic root of 1309328907 is about 1093.9973048316.

The spelling of 1309328907 in words is "one billion, three hundred nine million, three hundred twenty-eight thousand, nine hundred seven".