212634733 has 6 divisors (see below), whose sum is σ = 217949162. Its totient is φ = 207446880.

The previous prime is 212634689. The next prime is 212634739. The reversal of 212634733 is 337436212.

212634733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 9 + 212634724 = 3^2 + 14582^2 .

It is not a de Polignac number, because 212634733 - 2⁹ = 212634221 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 212634695 and 212634704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212634739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61566 + ... + 64927.

Almost surely, 2^212634733 is an apocalyptic number.

It is an amenable number.

212634733 is a deficient number, since it is larger than the sum of its proper divisors (5314429).

212634733 is an equidigital number, since it uses as much as digits as its factorization.

212634733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126575 (or 126534 counting only the distinct ones).

The product of its digits is 18144, while the sum is 31.

The square root of 212634733 is about 14582.0003085996. Note that the first 3 decimals coincide. The cubic root of 212634733 is about 596.8676881975.

The spelling of 212634733 in words is "two hundred twelve million, six hundred thirty-four thousand, seven hundred thirty-three".