1287206 has 16 divisors (see below), whose sum is σ = 2067120. Its totient is φ = 601120.

The previous prime is 1287199. The next prime is 1287217. The reversal of 1287206 is 6027821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9761 + ... + 9891.

It is an arithmetic number, because the mean of its divisors is an integer number (129195).

2^1287206 is an apocalyptic number.

1287206 is a deficient number, since it is larger than the sum of its proper divisors (779914).

1287206 is an equidigital number, since it uses as much as digits as its factorization.

1287206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1287206 is about 1134.5510125155. The cubic root of 1287206 is about 108.7800744761.

The spelling of 1287206 in words is "one million, two hundred eighty-seven thousand, two hundred six".