212144632 has 32 divisors (see below), whose sum is σ = 481338720. Its totient is φ = 85570560.

The previous prime is 212144627. The next prime is 212144741. The reversal of 212144632 is 236441212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212144597 and 212144606.

It is a congruent number.

It is an unprimeable number.

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, 110469 + ... + 112372.

It is an arithmetic number, because the mean of its divisors is an integer number (15041835).

Almost surely, 2^212144632 is an apocalyptic number.

It is an amenable number.

212144632 is an abundant number, since it is smaller than the sum of its proper divisors (269194088).

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

212144632 is a wasteful number, since it uses less digits than its factorization.

212144632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222871 (or 222867 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 212144632 is about 14565.1856150205. The cubic root of 212144632 is about 596.4087627248.

Adding to 212144632 its reverse (236441212), we get a palindrome (448585844).

The spelling of 212144632 in words is "two hundred twelve million, one hundred forty-four thousand, six hundred thirty-two".