1315587472 has 20 divisors (see below), whose sum is σ = 2550485196. Its totient is φ = 657397760.

The previous prime is 1315587461. The next prime is 1315587479. The reversal of 1315587472 is 2747855131.

It can be written as a sum of positive squares in 2 ways, for example, as 937829376 + 377758096 = 30624^2 + 19436^2 .

It is not an unprimeable number, because it can be changed into a prime (1315587479) 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, 3648 + ... + 51424.

Almost surely, 2^1315587472 is an apocalyptic number.

It is an amenable number.

1315587472 is a deficient number, since it is larger than the sum of its proper divisors (1234897724).

1315587472 is a wasteful number, since it uses less digits than its factorization.

1315587472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49506 (or 49500 counting only the distinct ones).

The product of its digits is 235200, while the sum is 43.

The square root of 1315587472 is about 36271.0279975630. The cubic root of 1315587472 is about 1095.7376296681.

The spelling of 1315587472 in words is "one billion, three hundred fifteen million, five hundred eighty-seven thousand, four hundred seventy-two".