212606312 has 16 divisors (see below), whose sum is σ = 401314500. Its totient is φ = 105589120.

The previous prime is 212606311. The next prime is 212606341. The reversal of 212606312 is 213606212.

It can be written as a sum of positive squares in 2 ways, for example, as 173343556 + 39262756 = 13166^2 + 6266^2 .

It is not an unprimeable number, because it can be changed into a prime (212606311) 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 3 ways as a sum of consecutive naturals, for example, 87989 + ... + 90372.

Almost surely, 2^212606312 is an apocalyptic number.

It is an amenable number.

212606312 is a deficient number, since it is larger than the sum of its proper divisors (188708188).

212606312 is a wasteful number, since it uses less digits than its factorization.

212606312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178516 (or 178512 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 212606312 is about 14581.0257526691. The cubic root of 212606312 is about 596.8410943415.

It can be divided in two parts, 21260 and 6312, that added together give a palindrome (27572).

The spelling of 212606312 in words is "two hundred twelve million, six hundred six thousand, three hundred twelve".