1287082 has 8 divisors (see below), whose sum is σ = 1982916. Its totient is φ = 626112.

The previous prime is 1287071. The next prime is 1287101. The reversal of 1287082 is 2807821.

It can be written as a sum of positive squares in 2 ways, for example, as 1279161 + 7921 = 1131^2 + 89^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1287082.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8623 + ... + 8770.

2^1287082 is an apocalyptic number.

1287082 is a deficient number, since it is larger than the sum of its proper divisors (695834).

1287082 is a wasteful number, since it uses less digits than its factorization.

1287082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17432.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1287082 is about 1134.4963640312. The cubic root of 1287082 is about 108.7765813386.

The spelling of 1287082 in words is "one million, two hundred eighty-seven thousand, eighty-two".