212047 has 8 divisors (see below), whose sum is σ = 238032. Its totient is φ = 187200.

The previous prime is 212039. The next prime is 212057. The reversal of 212047 is 740212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212047 - 2³ = 212039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147 + ... + 667.

It is an arithmetic number, because the mean of its divisors is an integer number (29754).

2²¹²⁰⁴⁷ is an apocalyptic number.

212047 is a deficient number, since it is larger than the sum of its proper divisors (25985).

212047 is a wasteful number, since it uses less digits than its factorization.

212047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 212047 is about 460.4856132389. The cubic root of 212047 is about 59.6317256733.

Adding to 212047 its reverse (740212), we get a palindrome (952259).

The spelling of 212047 in words is "two hundred twelve thousand, forty-seven", and thus it is an iban number.