233144243 has 2 divisors, whose sum is σ = 233144244. Its totient is φ = 233144242.

The previous prime is 233144203. The next prime is 233144267. The reversal of 233144243 is 342441332.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233144243 is a prime.

It is equal to p_12805820 and since 233144243 and 12805820 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (233144203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116572121 + 116572122.

It is an arithmetic number, because the mean of its divisors is an integer number (116572122).

Almost surely, 2^233144243 is an apocalyptic number.

233144243 is a deficient number, since it is larger than the sum of its proper divisors (1).

233144243 is an equidigital number, since it uses as much as digits as its factorization.

233144243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 26.

The square root of 233144243 is about 15269.0616280111. The cubic root of 233144243 is about 615.4719034319.

Adding to 233144243 its reverse (342441332), we get a palindrome (575585575).

The spelling of 233144243 in words is "two hundred thirty-three million, one hundred forty-four thousand, two hundred forty-three".