1312536986 has 16 divisors (see below), whose sum is σ = 2194335360. Its totient is φ = 585155520.

The previous prime is 1312536949. The next prime is 1312537049. The reversal of 1312536986 is 6896352131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015250 + ... + 1016541.

It is an arithmetic number, because the mean of its divisors is an integer number (137145960).

Almost surely, 2^1312536986 is an apocalyptic number.

1312536986 is a deficient number, since it is larger than the sum of its proper divisors (881798374).

1312536986 is a wasteful number, since it uses less digits than its factorization.

1312536986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031829.

The product of its digits is 233280, while the sum is 44.

The square root of 1312536986 is about 36228.9523171731. The cubic root of 1312536986 is about 1094.8900693766.

The spelling of 1312536986 in words is "one billion, three hundred twelve million, five hundred thirty-six thousand, nine hundred eighty-six".