243105452 has 12 divisors (see below), whose sum is σ = 426642216. Its totient is φ = 121207680.

The previous prime is 243105451. The next prime is 243105461. The reversal of 243105452 is 254501342.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (243105451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84674 + ... + 87497.

It is an arithmetic number, because the mean of its divisors is an integer number (35553518).

Almost surely, 2^243105452 is an apocalyptic number.

It is an amenable number.

243105452 is a deficient number, since it is larger than the sum of its proper divisors (183536764).

243105452 is a wasteful number, since it uses less digits than its factorization.

243105452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172528 (or 172526 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 243105452 is about 15591.8392757237. The cubic root of 243105452 is about 624.1154009392.

Adding to 243105452 its reverse (254501342), we get a palindrome (497606794).

The spelling of 243105452 in words is "two hundred forty-three million, one hundred five thousand, four hundred fifty-two".