1315530747 has 32 divisors (see below), whose sum is σ = 2041436160. Its totient is φ = 835686720.

The previous prime is 1315530709. The next prime is 1315530751. The reversal of 1315530747 is 7470355131.

1315530747 is a `hidden beast` number, since 1 + 31 + 553 + 0 + 74 + 7 = 666.

It is not a de Polignac number, because 1315530747 - 2¹⁰ = 1315529723 is a prime.

It is a super-2 number, since 2×1315530747² = 3461242292604756018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1315530247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164383 + ... + 172199.

It is an arithmetic number, because the mean of its divisors is an integer number (63794880).

Almost surely, 2^1315530747 is an apocalyptic number.

1315530747 is a deficient number, since it is larger than the sum of its proper divisors (725905413).

1315530747 is a wasteful number, since it uses less digits than its factorization.

1315530747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120 (or 8114 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 1315530747 is about 36270.2460289422. The cubic root of 1315530747 is about 1095.7218809090.

Adding to 1315530747 its reverse (7470355131), we get a palindrome (8785885878).

The spelling of 1315530747 in words is "one billion, three hundred fifteen million, five hundred thirty thousand, seven hundred forty-seven".