212534538 has 8 divisors (see below), whose sum is σ = 425069088. Its totient is φ = 70844844.

The previous prime is 212534537. The next prime is 212534557. The reversal of 212534538 is 835435212.

It is a sphenic number, since it is the product of 3 distinct primes.

212534538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 212534499 and 212534508.

It is not an unprimeable number, because it can be changed into a prime (212534537) 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 in 3 ways as a sum of consecutive naturals, for example, 17711206 + ... + 17711217.

It is an arithmetic number, because the mean of its divisors is an integer number (53133636).

Almost surely, 2^212534538 is an apocalyptic number.

212534538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212534538 is a wasteful number, since it uses less digits than its factorization.

212534538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35422428.

The product of its digits is 28800, while the sum is 33.

The square root of 212534538 is about 14578.5643326083. The cubic root of 212534538 is about 596.7739240338.

It can be divided in two parts, 2125 and 34538, that added together give a palindrome (36663).

The spelling of 212534538 in words is "two hundred twelve million, five hundred thirty-four thousand, five hundred thirty-eight".