212323065 has 24 divisors (see below), whose sum is σ = 351856128. Its totient is φ = 109327680.

The previous prime is 212323039. The next prime is 212323087. The reversal of 212323065 is 560323212.

It is not a de Polignac number, because 212323065 - 2⁹ = 212322553 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 4200 + ... + 21030.

It is an arithmetic number, because the mean of its divisors is an integer number (14660672).

Almost surely, 2^212323065 is an apocalyptic number.

It is an amenable number.

212323065 is a deficient number, since it is larger than the sum of its proper divisors (139533063).

212323065 is a wasteful number, since it uses less digits than its factorization.

212323065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16897 (or 16868 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 212323065 is about 14571.3096528761. The cubic root of 212323065 is about 596.5759272699.

Adding to 212323065 its reverse (560323212), we get a palindrome (772646277).

The spelling of 212323065 in words is "two hundred twelve million, three hundred twenty-three thousand, sixty-five".