1315503315 has 64 divisors (see below), whose sum is σ = 2680550400. Its totient is φ = 599622912.

The previous prime is 1315503311. The next prime is 1315503317. The reversal of 1315503315 is 5133055131.

It is not a de Polignac number, because 1315503315 - 2² = 1315503311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1315503311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 356319 + ... + 359991.

It is an arithmetic number, because the mean of its divisors is an integer number (41883600).

Almost surely, 2^1315503315 is an apocalyptic number.

1315503315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1315503315 is an abundant number, since it is smaller than the sum of its proper divisors (1365047085).

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

1315503315 is a wasteful number, since it uses less digits than its factorization.

1315503315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073 (or 4067 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 1315503315 is about 36269.8678657643. The cubic root of 1315503315 is about 1095.7142647050.

Adding to 1315503315 its reverse (5133055131), we get a palindrome (6448558446).

The spelling of 1315503315 in words is "one billion, three hundred fifteen million, five hundred three thousand, three hundred fifteen".