212742167 has 8 divisors (see below), whose sum is σ = 234212880. Its totient is φ = 191626560.

The previous prime is 212742161. The next prime is 212742191. The reversal of 212742167 is 761247212.

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 212742167 - 2⁸ = 212741911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212742161) 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 in 7 ways as a sum of consecutive naturals, for example, 87518 + ... + 89915.

It is an arithmetic number, because the mean of its divisors is an integer number (29276610).

Almost surely, 2^212742167 is an apocalyptic number.

212742167 is a deficient number, since it is larger than the sum of its proper divisors (21470713).

212742167 is a wasteful number, since it uses less digits than its factorization.

212742167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177553.

The product of its digits is 9408, while the sum is 32.

The square root of 212742167 is about 14585.6836315615. The cubic root of 212742167 is about 596.9681940207.

Adding to 212742167 its reverse (761247212), we get a palindrome (973989379).

The spelling of 212742167 in words is "two hundred twelve million, seven hundred forty-two thousand, one hundred sixty-seven".