212794949 has 2 divisors, whose sum is σ = 212794950. Its totient is φ = 212794948.

The previous prime is 212794937. The next prime is 212794957. The reversal of 212794949 is 949497212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201838849 + 10956100 = 14207^2 + 3310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212794949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212794909) 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, 106397474 + 106397475.

It is an arithmetic number, because the mean of its divisors is an integer number (106397475).

Almost surely, 2^212794949 is an apocalyptic number.

It is an amenable number.

212794949 is a deficient number, since it is larger than the sum of its proper divisors (1).

212794949 is an equidigital number, since it uses as much as digits as its factorization.

212794949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 212794949 is about 14587.4928963136. The cubic root of 212794949 is about 597.0175598332.

The spelling of 212794949 in words is "two hundred twelve million, seven hundred ninety-four thousand, nine hundred forty-nine".