212538682 has 4 divisors (see below), whose sum is σ = 318808026. Its totient is φ = 106269340.

The previous prime is 212538671. The next prime is 212538719. The reversal of 212538682 is 286835212.

212538682 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 204804721 + 7733961 = 14311^2 + 2781^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53134669 + ... + 53134672.

Almost surely, 2^212538682 is an apocalyptic number.

212538682 is a deficient number, since it is larger than the sum of its proper divisors (106269344).

212538682 is a wasteful number, since it uses less digits than its factorization.

212538682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106269343.

The product of its digits is 46080, while the sum is 37.

The square root of 212538682 is about 14578.7064583934. The cubic root of 212538682 is about 596.7778026428. Note that the first 3 decimals are identical.

The spelling of 212538682 in words is "two hundred twelve million, five hundred thirty-eight thousand, six hundred eighty-two".