212169343 has 2 divisors, whose sum is σ = 212169344. Its totient is φ = 212169342.

The previous prime is 212169341. The next prime is 212169379. The reversal of 212169343 is 343961212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212169343 - 2¹ = 212169341 is a prime.

Together with 212169341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212169341) 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, 106084671 + 106084672.

It is an arithmetic number, because the mean of its divisors is an integer number (106084672).

Almost surely, 2^212169343 is an apocalyptic number.

212169343 is a deficient number, since it is larger than the sum of its proper divisors (1).

212169343 is an equidigital number, since it uses as much as digits as its factorization.

212169343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 212169343 is about 14566.0338802297. The cubic root of 212169343 is about 596.4319187585.

The spelling of 212169343 in words is "two hundred twelve million, one hundred sixty-nine thousand, three hundred forty-three".