1312686522 has 48 divisors (see below), whose sum is σ = 3257841600. Its totient is φ = 374201856.

The previous prime is 1312686517. The next prime is 1312686523. The reversal of 1312686522 is 2256862131.

1312686522 is a `hidden beast` number, since 1 + 3 + 126 + 8 + 6 + 522 = 666.

It is not an unprimeable number, because it can be changed into a prime (1312686523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44973 + ... + 68175.

It is an arithmetic number, because the mean of its divisors is an integer number (67871700).

Almost surely, 2^1312686522 is an apocalyptic number.

1312686522 is an abundant number, since it is smaller than the sum of its proper divisors (1945155078).

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

1312686522 is a wasteful number, since it uses less digits than its factorization.

1312686522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23667 (or 23664 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 1312686522 is about 36231.0160221874. The cubic root of 1312686522 is about 1094.9316477006.

The spelling of 1312686522 in words is "one billion, three hundred twelve million, six hundred eighty-six thousand, five hundred twenty-two".