212844113 has 2 divisors, whose sum is σ = 212844114. Its totient is φ = 212844112.

The previous prime is 212844103. The next prime is 212844157. The reversal of 212844113 is 311448212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196336144 + 16507969 = 14012^2 + 4063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212844113 is a prime.

It is not a weakly prime, because it can be changed into another prime (212844103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106422056 + 106422057.

It is an arithmetic number, because the mean of its divisors is an integer number (106422057).

Almost surely, 2^212844113 is an apocalyptic number.

It is an amenable number.

212844113 is a deficient number, since it is larger than the sum of its proper divisors (1).

212844113 is an equidigital number, since it uses as much as digits as its factorization.

212844113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 26.

The square root of 212844113 is about 14589.1779412001. The cubic root of 212844113 is about 597.0635344694.

The spelling of 212844113 in words is "two hundred twelve million, eight hundred forty-four thousand, one hundred thirteen".