1287212 has 12 divisors (see below), whose sum is σ = 2371320. Its totient is φ = 609696.

The previous prime is 1287199. The next prime is 1287217. The reversal of 1287212 is 2127821.

It is not an unprimeable number, because it can be changed into a prime (1287217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8393 + ... + 8544.

It is an arithmetic number, because the mean of its divisors is an integer number (197610).

2^1287212 is an apocalyptic number.

It is an amenable number.

1287212 is a deficient number, since it is larger than the sum of its proper divisors (1084108).

1287212 is a wasteful number, since it uses less digits than its factorization.

1287212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16960 (or 16958 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 1287212 is about 1134.5536567303. The cubic root of 1287212 is about 108.7802434932.

The spelling of 1287212 in words is "one million, two hundred eighty-seven thousand, two hundred twelve".