1315320534 has 24 divisors (see below), whose sum is σ = 3108939912. Its totient is φ = 398581920.

The previous prime is 1315320529. The next prime is 1315320547. The reversal of 1315320534 is 4350235131.

It is a junction number, because it is equal to n+sod(n) for n = 1315320498 and 1315320507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3321319 + ... + 3321714.

It is an arithmetic number, because the mean of its divisors is an integer number (129539163).

Almost surely, 2^1315320534 is an apocalyptic number.

1315320534 is an abundant number, since it is smaller than the sum of its proper divisors (1793619378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315320534 is a wasteful number, since it uses less digits than its factorization.

1315320534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643052 (or 6643049 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1315320534 is about 36267.3480420060. The cubic root of 1315320534 is about 1095.6635147948.

Adding to 1315320534 its reverse (4350235131), we get a palindrome (5665555665).

The spelling of 1315320534 in words is "one billion, three hundred fifteen million, three hundred twenty thousand, five hundred thirty-four".