243000435133 has 4 divisors (see below), whose sum is σ = 243001827040. Its totient is φ = 242999043228.

The previous prime is 243000435049. The next prime is 243000435143. The reversal of 243000435133 is 331534000342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243000435133 - 2³⁷ = 105561481661 is a prime.

It is a super-2 number, since 2×243000435133² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243000435143) 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, 388935 + ... + 798292.

It is an arithmetic number, because the mean of its divisors is an integer number (60750456760).

Almost surely, 2^243000435133 is an apocalyptic number.

It is an amenable number.

243000435133 is a deficient number, since it is larger than the sum of its proper divisors (1391907).

243000435133 is a wasteful number, since it uses less digits than its factorization.

243000435133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391906.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 243000435133 its reverse (331534000342), we get a palindrome (574534435475).

The spelling of 243000435133 in words is "two hundred forty-three billion, four hundred thirty-five thousand, one hundred thirty-three".