243433 has 2 divisors, whose sum is σ = 243434. Its totient is φ = 243432.

The previous prime is 243431. The next prime is 243437. The reversal of 243433 is 334342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242064 + 1369 = 492^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 243433 - 2¹ = 243431 is a prime.

Together with 243431, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2³ + 4 + 4⁸ + 3² + 3⁶ + 3¹¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 243433.

It is not a weakly prime, because it can be changed into another prime (243431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121716 + 121717.

It is an arithmetic number, because the mean of its divisors is an integer number (121717).

2²⁴³⁴³³ is an apocalyptic number.

It is an amenable number.

243433 is a deficient number, since it is larger than the sum of its proper divisors (1).

243433 is an equidigital number, since it uses as much as digits as its factorization.

243433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 19.

The square root of 243433 is about 493.3892986274. The cubic root of 243433 is about 62.4395575662.

Adding to 243433 its reverse (334342), we get a palindrome (577775).

Subtracting 243433 from its reverse (334342), we obtain a palindrome (90909).

It can be divided in two parts, 243 and 433, that added together give a palindrome (676).

The spelling of 243433 in words is "two hundred forty-three thousand, four hundred thirty-three".