1316575520 has 96 divisors (see below), whose sum is σ = 3358536048. Its totient is φ = 484835328.

The previous prime is 1316575457. The next prime is 1316575541. The reversal of 1316575520 is 255756131.

It can be written as a sum of positive squares in 8 ways, for example, as 623201296 + 693374224 = 24964^2 + 26332^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1199612 + ... + 1200708.

Almost surely, 2^1316575520 is an apocalyptic number.

1316575520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316575520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679268024).

1316575520 is an abundant number, since it is smaller than the sum of its proper divisors (2041960528).

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

1316575520 is a wasteful number, since it uses less digits than its factorization.

1316575520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 1316575520 is about 36284.6457885426. The cubic root of 1316575520 is about 1096.0118722851.

The spelling of 1316575520 in words is "one billion, three hundred sixteen million, five hundred seventy-five thousand, five hundred twenty".