1286841 has 16 divisors (see below), whose sum is σ = 1801728. Its totient is φ = 816000.

The previous prime is 1286839. The next prime is 1286843. The reversal of 1286841 is 1486821.

It is an interprime number because it is at equal distance from previous prime (1286839) and next prime (1286843).

It is not a de Polignac number, because 1286841 - 2¹ = 1286839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1286799 and 1286808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9325 + ... + 9461.

It is an arithmetic number, because the mean of its divisors is an integer number (112608).

2^1286841 is an apocalyptic number.

It is an amenable number.

1286841 is a deficient number, since it is larger than the sum of its proper divisors (514887).

1286841 is a wasteful number, since it uses less digits than its factorization.

1286841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272.

The product of its digits is 3072, while the sum is 30.

The square root of 1286841 is about 1134.3901445270. The cubic root of 1286841 is about 108.7697916152.

The spelling of 1286841 in words is "one million, two hundred eighty-six thousand, eight hundred forty-one".