212344459 has 2 divisors, whose sum is σ = 212344460. Its totient is φ = 212344458.

The previous prime is 212344439. The next prime is 212344463. The reversal of 212344459 is 954443212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212344459 is a prime.

It is not a weakly prime, because it can be changed into another prime (212344439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106172229 + 106172230.

It is an arithmetic number, because the mean of its divisors is an integer number (106172230).

Almost surely, 2^212344459 is an apocalyptic number.

212344459 is a deficient number, since it is larger than the sum of its proper divisors (1).

212344459 is an equidigital number, since it uses as much as digits as its factorization.

212344459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 212344459 is about 14572.0437482187. The cubic root of 212344459 is about 596.5959639009.

The spelling of 212344459 in words is "two hundred twelve million, three hundred forty-four thousand, four hundred fifty-nine".