1312869268 has 12 divisors (see below), whose sum is σ = 2432669652. Its totient is φ = 617820800.

The previous prime is 1312869263. The next prime is 1312869329. The reversal of 1312869268 is 8629682131.

It can be written as a sum of positive squares in 2 ways, for example, as 825872644 + 486996624 = 28738^2 + 22068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312869263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9653383 + ... + 9653518.

It is an arithmetic number, because the mean of its divisors is an integer number (202722471).

Almost surely, 2^1312869268 is an apocalyptic number.

It is an amenable number.

1312869268 is a deficient number, since it is larger than the sum of its proper divisors (1119800384).

1312869268 is a wasteful number, since it uses less digits than its factorization.

1312869268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19306922 (or 19306920 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 1312869268 is about 36233.5378896403. The cubic root of 1312869268 is about 1094.9824557422.

The spelling of 1312869268 in words is "one billion, three hundred twelve million, eight hundred sixty-nine thousand, two hundred sixty-eight".