1213208 has 8 divisors (see below), whose sum is σ = 2274780. Its totient is φ = 606600.

The previous prime is 1213189. The next prime is 1213213. The reversal of 1213208 is 8023121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75818 + ... + 75833.

2^1213208 is an apocalyptic number.

It is an amenable number.

1213208 is a deficient number, since it is larger than the sum of its proper divisors (1061572).

1213208 is a wasteful number, since it uses less digits than its factorization.

1213208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151657 (or 151653 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1213208 is about 1101.4572165999. The cubic root of 1213208 is about 106.6543128054.

Adding to 1213208 its reverse (8023121), we get a palindrome (9236329).

The spelling of 1213208 in words is "one million, two hundred thirteen thousand, two hundred eight".