212533634 has 16 divisors (see below), whose sum is σ = 330333120. Its totient is φ = 102434640.

The previous prime is 212533619. The next prime is 212533637. The reversal of 212533634 is 436335212.

212533634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 212533597 and 212533606.

It is not an unprimeable number, because it can be changed into a prime (212533637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37427 + ... + 42729.

It is an arithmetic number, because the mean of its divisors is an integer number (20645820).

Almost surely, 2^212533634 is an apocalyptic number.

212533634 is a deficient number, since it is larger than the sum of its proper divisors (117799486).

212533634 is a wasteful number, since it uses less digits than its factorization.

212533634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025.

The product of its digits is 12960, while the sum is 29.

The square root of 212533634 is about 14578.5333281507. The cubic root of 212533634 is about 596.7730779213.

Adding to 212533634 its reverse (436335212), we get a palindrome (648868846).

The spelling of 212533634 in words is "two hundred twelve million, five hundred thirty-three thousand, six hundred thirty-four".