1315487305 has 24 divisors (see below), whose sum is σ = 1752030144. Its totient is φ = 940365600.

The previous prime is 1315487293. The next prime is 1315487321. The reversal of 1315487305 is 5037845131.

It is not a de Polignac number, because 1315487305 - 2⁵ = 1315487273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188020 + ... + 194890.

It is an arithmetic number, because the mean of its divisors is an integer number (73001256).

Almost surely, 2^1315487305 is an apocalyptic number.

It is an amenable number.

1315487305 is a deficient number, since it is larger than the sum of its proper divisors (436542839).

1315487305 is an equidigital number, since it uses as much as digits as its factorization.

1315487305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7005 (or 6946 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1315487305 is about 36269.6471584712. The cubic root of 1315487305 is about 1095.7098196493.

The spelling of 1315487305 in words is "one billion, three hundred fifteen million, four hundred eighty-seven thousand, three hundred five".