212541732 has 60 divisors (see below), whose sum is σ = 598378396. Its totient is φ = 65396160.

The previous prime is 212541691. The next prime is 212541737. The reversal of 212541732 is 237145212.

212541732 is a `hidden beast` number, since 212 + 5 + 417 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100520676 + 112021056 = 10026^2 + 10584^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 212541696 and 212541705.

It is not an unprimeable number, because it can be changed into a prime (212541737) 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 19 ways as a sum of consecutive naturals, for example, 21019 + ... + 29442.

Almost surely, 2^212541732 is an apocalyptic number.

It is an amenable number.

212541732 is an abundant number, since it is smaller than the sum of its proper divisors (385836664).

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

212541732 is a wasteful number, since it uses less digits than its factorization.

212541732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50490 (or 50479 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 212541732 is about 14578.8110626347. The cubic root of 212541732 is about 596.7806572817.

Adding to 212541732 its reverse (237145212), we get a palindrome (449686944).

The spelling of 212541732 in words is "two hundred twelve million, five hundred forty-one thousand, seven hundred thirty-two".