1312548512 has 96 divisors (see below), whose sum is σ = 3054832704. Its totient is φ = 548352000.

The previous prime is 1312548511. The next prime is 1312548553. The reversal of 1312548512 is 2158452131.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1312548511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254762 + ... + 259862.

It is an arithmetic number, because the mean of its divisors is an integer number (31821174).

Almost surely, 2^1312548512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312548512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527416352).

1312548512 is an abundant number, since it is smaller than the sum of its proper divisors (1742284192).

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

1312548512 is a wasteful number, since it uses less digits than its factorization.

1312548512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5174 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 1312548512 is about 36229.1113884953. Note that the first 3 decimals coincide. The cubic root of 1312548512 is about 1094.8932742809.

The spelling of 1312548512 in words is "one billion, three hundred twelve million, five hundred forty-eight thousand, five hundred twelve".