212932168 has 8 divisors (see below), whose sum is σ = 399247830. Its totient is φ = 106466080.

The previous prime is 212932163. The next prime is 212932177. The reversal of 212932168 is 861239212.

It can be written as a sum of positive squares in only one way, i.e., 209612484 + 3319684 = 14478^2 + 1822^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (212932163) 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 as a sum of consecutive naturals, namely, 13308253 + ... + 13308268.

Almost surely, 2^212932168 is an apocalyptic number.

It is an amenable number.

212932168 is a deficient number, since it is larger than the sum of its proper divisors (186315662).

212932168 is a wasteful number, since it uses less digits than its factorization.

212932168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26616527 (or 26616523 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 212932168 is about 14592.1954482525. The cubic root of 212932168 is about 597.1458594792.

The spelling of 212932168 in words is "two hundred twelve million, nine hundred thirty-two thousand, one hundred sixty-eight".