1315921067 has 2 divisors, whose sum is σ = 1315921068. Its totient is φ = 1315921066.

The previous prime is 1315921063. The next prime is 1315921111. The reversal of 1315921067 is 7601295131.

It is a weak prime.

It is an emirp because it is prime and its reverse (7601295131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1315921067 - 2² = 1315921063 is a prime.

It is not a weakly prime, because it can be changed into another prime (1315921063) 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, 657960533 + 657960534.

It is an arithmetic number, because the mean of its divisors is an integer number (657960534).

Almost surely, 2^1315921067 is an apocalyptic number.

1315921067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315921067 is an equidigital number, since it uses as much as digits as its factorization.

1315921067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1315921067 is about 36275.6263488310. The cubic root of 1315921067 is about 1095.8302376501.

The spelling of 1315921067 in words is "one billion, three hundred fifteen million, nine hundred twenty-one thousand, sixty-seven".