212433 has 12 divisors (see below), whose sum is σ = 307440. Its totient is φ = 130416.

The previous prime is 212423. The next prime is 212437. The reversal of 212433 is 334212.

It is not a de Polignac number, because 212433 - 2⁶ = 212369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298 + ... + 716.

It is an arithmetic number, because the mean of its divisors is an integer number (25620).

2²¹²⁴³³ is an apocalyptic number.

It is an amenable number.

212433 is a deficient number, since it is larger than the sum of its proper divisors (95007).

212433 is a wasteful number, since it uses less digits than its factorization.

212433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 435 counting only the distinct ones).

The product of its digits is 144, while the sum is 15.

The square root of 212433 is about 460.9045454321. The cubic root of 212433 is about 59.6678872999.

Adding to 212433 its reverse (334212), we get a palindrome (546645).

The spelling of 212433 in words is "two hundred twelve thousand, four hundred thirty-three".