1312515352 has 16 divisors (see below), whose sum is σ = 2474717400. Its totient is φ = 652590720.

The previous prime is 1312515341. The next prime is 1312515353. The reversal of 1312515352 is 2535152131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312515352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312515353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456849 + ... + 459712.

Almost surely, 2^1312515352 is an apocalyptic number.

It is an amenable number.

1312515352 is a deficient number, since it is larger than the sum of its proper divisors (1162202048).

1312515352 is a wasteful number, since it uses less digits than its factorization.

1312515352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916746 (or 916742 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 1312515352 is about 36228.6537425834. The cubic root of 1312515352 is about 1094.8840538047.

Adding to 1312515352 its reverse (2535152131), we get a palindrome (3847667483).

The spelling of 1312515352 in words is "one billion, three hundred twelve million, five hundred fifteen thousand, three hundred fifty-two".