1212843208 has 32 divisors (see below), whose sum is σ = 2335433760. Its totient is φ = 590163840.

The previous prime is 1212843197. The next prime is 1212843209. The reversal of 1212843208 is 8023482121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212843208.

It is not an unprimeable number, because it can be changed into a prime (1212843209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90391 + ... + 102937.

It is an arithmetic number, because the mean of its divisors is an integer number (72982305).

Almost surely, 2^1212843208 is an apocalyptic number.

It is an amenable number.

1212843208 is a deficient number, since it is larger than the sum of its proper divisors (1122590552).

1212843208 is a wasteful number, since it uses less digits than its factorization.

1212843208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12877 (or 12873 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 1212843208 is about 34825.8985239434. The cubic root of 1212843208 is about 1066.4362199219.

The spelling of 1212843208 in words is "one billion, two hundred twelve million, eight hundred forty-three thousand, two hundred eight".