212542732 has 12 divisors (see below), whose sum is σ = 372341200. Its totient is φ = 106159536.

The previous prime is 212542723. The next prime is 212542751. The reversal of 212542732 is 237245212.

It is a self number, because there is not a number n which added to its sum of digits gives 212542732.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23607 + ... + 31342.

Almost surely, 2^212542732 is an apocalyptic number.

It is an amenable number.

212542732 is a deficient number, since it is larger than the sum of its proper divisors (159798468).

212542732 is a wasteful number, since it uses less digits than its factorization.

212542732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55920 (or 55918 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 212542732 is about 14578.8453589439. The cubic root of 212542732 is about 596.7815932230.

Adding to 212542732 its reverse (237245212), we get a palindrome (449787944).

The spelling of 212542732 in words is "two hundred twelve million, five hundred forty-two thousand, seven hundred thirty-two".