1315310816 has 24 divisors (see below), whose sum is σ = 2622301920. Its totient is φ = 649329408.

The previous prime is 1315310807. The next prime is 1315310819. The reversal of 1315310816 is 6180135131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315310819) 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 3 ways as a sum of consecutive naturals, for example, 257621 + ... + 262676.

It is an arithmetic number, because the mean of its divisors is an integer number (109262580).

Almost surely, 2^1315310816 is an apocalyptic number.

1315310816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1315310816 is a deficient number, since it is larger than the sum of its proper divisors (1306991104).

1315310816 is an equidigital number, since it uses as much as digits as its factorization.

1315310816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520386 (or 520378 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1315310816 is about 36267.2140644963. The cubic root of 1315310816 is about 1095.6608164198.

Adding to 1315310816 its reverse (6180135131), we get a palindrome (7495445947).

The spelling of 1315310816 in words is "one billion, three hundred fifteen million, three hundred ten thousand, eight hundred sixteen".