243010133 has 4 divisors (see below), whose sum is σ = 255800160. Its totient is φ = 230220108.

The previous prime is 243010129. The next prime is 243010193. The reversal of 243010133 is 331010342.

It is a happy number.

243010133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 243010133 - 2² = 243010129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243010193) 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, 6394985 + ... + 6395022.

It is an arithmetic number, because the mean of its divisors is an integer number (63950040).

Almost surely, 2^243010133 is an apocalyptic number.

It is an amenable number.

243010133 is a deficient number, since it is larger than the sum of its proper divisors (12790027).

243010133 is a wasteful number, since it uses less digits than its factorization.

243010133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12790026.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 243010133 is about 15588.7822808582. The cubic root of 243010133 is about 624.0338206590.

Adding to 243010133 its reverse (331010342), we get a palindrome (574020475).

The spelling of 243010133 in words is "two hundred forty-three million, ten thousand, one hundred thirty-three".