212544341 has 2 divisors, whose sum is σ = 212544342. Its totient is φ = 212544340.

The previous prime is 212544331. The next prime is 212544347. The reversal of 212544341 is 143445212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128913316 + 83631025 = 11354^2 + 9145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212544341 is a prime.

It is a super-2 number, since 2×212544341² = 90350193782248562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212544341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212544347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106272170 + 106272171.

It is an arithmetic number, because the mean of its divisors is an integer number (106272171).

Almost surely, 2^212544341 is an apocalyptic number.

It is an amenable number.

212544341 is a deficient number, since it is larger than the sum of its proper divisors (1).

212544341 is an equidigital number, since it uses as much as digits as its factorization.

212544341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 26.

The square root of 212544341 is about 14578.9005415360. The cubic root of 212544341 is about 596.7830991463.

Adding to 212544341 its reverse (143445212), we get a palindrome (355989553).

The spelling of 212544341 in words is "two hundred twelve million, five hundred forty-four thousand, three hundred forty-one".