212768341 has 4 divisors (see below), whose sum is σ = 216782892. Its totient is φ = 208753792.

The previous prime is 212768329. The next prime is 212768351. The reversal of 212768341 is 143867212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188265841 + 24502500 = 13721^2 + 4950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212768341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212768297 and 212768306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212768351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2007196 + ... + 2007301.

It is an arithmetic number, because the mean of its divisors is an integer number (54195723).

Almost surely, 2^212768341 is an apocalyptic number.

It is an amenable number.

212768341 is a deficient number, since it is larger than the sum of its proper divisors (4014551).

212768341 is an equidigital number, since it uses as much as digits as its factorization.

212768341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014550.

The product of its digits is 16128, while the sum is 34.

The square root of 212768341 is about 14586.5808536476. The cubic root of 212768341 is about 596.9926749922.

The spelling of 212768341 in words is "two hundred twelve million, seven hundred sixty-eight thousand, three hundred forty-one".