1282861 has 8 divisors (see below), whose sum is σ = 1360800. Its totient is φ = 1206000.

The previous prime is 1282817. The next prime is 1282867. The reversal of 1282861 is 1682821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1282861 - 2⁹ = 1282349 is a prime.

It is a super-3 number, since 3×1282861³ = 6333737526752530143, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1282867) 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 7 ways as a sum of consecutive naturals, for example, 4635 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^1282861 is an apocalyptic number.

It is an amenable number.

1282861 is a deficient number, since it is larger than the sum of its proper divisors (77939).

1282861 is a wasteful number, since it uses less digits than its factorization.

1282861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539.

The product of its digits is 1536, while the sum is 28.

The square root of 1282861 is about 1132.6345394698. The cubic root of 1282861 is about 108.6575397673.

The spelling of 1282861 in words is "one million, two hundred eighty-two thousand, eight hundred sixty-one".