1206218 has 16 divisors (see below), whose sum is σ = 2063880. Its totient is φ = 523776.

The previous prime is 1206209. The next prime is 1206223. The reversal of 1206218 is 8126021.

It can be written as a sum of positive squares in 4 ways, for example, as 1181569 + 24649 = 1087^2 + 157^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1206218.

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 7 ways as a sum of consecutive naturals, for example, 923 + ... + 1806.

2^1206218 is an apocalyptic number.

1206218 is a deficient number, since it is larger than the sum of its proper divisors (857662).

1206218 is a wasteful number, since it uses less digits than its factorization.

1206218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1206218 is about 1098.2795636813. The cubic root of 1206218 is about 106.4490855547.

The spelling of 1206218 in words is "one million, two hundred six thousand, two hundred eighteen".