212340563 has 2 divisors, whose sum is σ = 212340564. Its totient is φ = 212340562.

The previous prime is 212340551. The next prime is 212340613. The reversal of 212340563 is 365043212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212340563 - 2¹⁴ = 212324179 is a prime.

It is not a weakly prime, because it can be changed into another prime (212340533) 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, 106170281 + 106170282.

It is an arithmetic number, because the mean of its divisors is an integer number (106170282).

Almost surely, 2^212340563 is an apocalyptic number.

212340563 is a deficient number, since it is larger than the sum of its proper divisors (1).

212340563 is an equidigital number, since it uses as much as digits as its factorization.

212340563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 212340563 is about 14571.9100669747. The cubic root of 212340563 is about 596.5923151877.

Adding to 212340563 its reverse (365043212), we get a palindrome (577383775).

The spelling of 212340563 in words is "two hundred twelve million, three hundred forty thousand, five hundred sixty-three".