1286785314 has 12 divisors (see below), whose sum is σ = 2788034886. Its totient is φ = 428928432.

The previous prime is 1286785289. The next prime is 1286785373. The reversal of 1286785314 is 4135876821.

It can be written as a sum of positive squares in only one way, i.e., 1256348025 + 30437289 = 35445^2 + 5517^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1286785314.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 35744019 + ... + 35744054.

Almost surely, 2^1286785314 is an apocalyptic number.

1286785314 is an abundant number, since it is smaller than the sum of its proper divisors (1501249572).

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

1286785314 is a wasteful number, since it uses less digits than its factorization.

1286785314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71488081 (or 71488078 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 1286785314 is about 35871.7899469764. The cubic root of 1286785314 is about 1087.6822264592.

The spelling of 1286785314 in words is "one billion, two hundred eighty-six million, seven hundred eighty-five thousand, three hundred fourteen".