233243149 has 2 divisors, whose sum is σ = 233243150. Its totient is φ = 233243148.

The previous prime is 233243123. The next prime is 233243159. The reversal of 233243149 is 941342332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215561124 + 17682025 = 14682^2 + 4205^2 .

It is a cyclic number.

It is not a de Polignac number, because 233243149 - 2²³ = 224854541 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233243149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233243159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116621574 + 116621575.

It is an arithmetic number, because the mean of its divisors is an integer number (116621575).

Almost surely, 2^233243149 is an apocalyptic number.

It is an amenable number.

233243149 is a deficient number, since it is larger than the sum of its proper divisors (1).

233243149 is an equidigital number, since it uses as much as digits as its factorization.

233243149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 233243149 is about 15272.3000559837. The cubic root of 233243149 is about 615.5589243211.

The spelling of 233243149 in words is "two hundred thirty-three million, two hundred forty-three thousand, one hundred forty-nine".