212316047 has 8 divisors (see below), whose sum is σ = 222648240. Its totient is φ = 202184640.

The previous prime is 212316037. The next prime is 212316053. The reversal of 212316047 is 740613212.

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 212316047 - 2⁴ = 212316031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212316037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48029 + ... + 52262.

It is an arithmetic number, because the mean of its divisors is an integer number (27831030).

Almost surely, 2^212316047 is an apocalyptic number.

212316047 is a deficient number, since it is larger than the sum of its proper divisors (10332193).

212316047 is a wasteful number, since it uses less digits than its factorization.

212316047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100393.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 212316047 is about 14571.0688351953. The cubic root of 212316047 is about 596.5693542424.

Adding to 212316047 its reverse (740613212), we get a palindrome (952929259).

The spelling of 212316047 in words is "two hundred twelve million, three hundred sixteen thousand, forty-seven".