212834533 has 4 divisors (see below), whose sum is σ = 213008940. Its totient is φ = 212660128.

The previous prime is 212834527. The next prime is 212834537. The reversal of 212834533 is 335438212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 211353444 + 1481089 = 14538^2 + 1217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212834533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212834495 and 212834504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212834537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85360 + ... + 87817.

It is an arithmetic number, because the mean of its divisors is an integer number (53252235).

Almost surely, 2^212834533 is an apocalyptic number.

It is an amenable number.

212834533 is a deficient number, since it is larger than the sum of its proper divisors (174407).

212834533 is a wasteful number, since it uses less digits than its factorization.

212834533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174406.

The product of its digits is 17280, while the sum is 31.

The square root of 212834533 is about 14588.8496119468. The cubic root of 212834533 is about 597.0545764980.

The spelling of 212834533 in words is "two hundred twelve million, eight hundred thirty-four thousand, five hundred thirty-three".