1286065 has 16 divisors (see below), whose sum is σ = 1713600. Its totient is φ = 918720.

The previous prime is 1286039. The next prime is 1286071. The reversal of 1286065 is 5606821.

It is not a de Polignac number, because 1286065 - 2⁷ = 1285937 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3511 + ... + 3859.

It is an arithmetic number, because the mean of its divisors is an integer number (107100).

2^1286065 is an apocalyptic number.

It is an amenable number.

1286065 is a deficient number, since it is larger than the sum of its proper divisors (427535).

1286065 is a wasteful number, since it uses less digits than its factorization.

1286065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1286065 is about 1134.0480589464. The cubic root of 1286065 is about 108.7479235082.

The spelling of 1286065 in words is "one million, two hundred eighty-six thousand, sixty-five".