212136462 has 16 divisors (see below), whose sum is σ = 471414480. Its totient is φ = 70712136.

The previous prime is 212136451. The next prime is 212136469. The reversal of 212136462 is 264631212.

212136462 is a `hidden beast` number, since 2 + 1 + 2 + 13 + 646 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212136469) 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, 1964173 + ... + 1964280.

It is an arithmetic number, because the mean of its divisors is an integer number (29463405).

Almost surely, 2^212136462 is an apocalyptic number.

212136462 is an abundant number, since it is smaller than the sum of its proper divisors (259278018).

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

212136462 is a wasteful number, since it uses less digits than its factorization.

212136462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928464 (or 3928458 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 212136462 is about 14564.9051490217. The cubic root of 212136462 is about 596.4011064354.

Adding to 212136462 its reverse (264631212), we get a palindrome (476767674).

It can be divided in two parts, 2121 and 36462, that added together give a palindrome (38583).

The spelling of 212136462 in words is "two hundred twelve million, one hundred thirty-six thousand, four hundred sixty-two".