243120532 has 12 divisors (see below), whose sum is σ = 425866420. Its totient is φ = 121444416.

The previous prime is 243120497. The next prime is 243120539. The reversal of 243120532 is 235021342.

It can be written as a sum of positive squares in 2 ways, for example, as 106791556 + 136328976 = 10334^2 + 11676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243120539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24153 + ... + 32704.

Almost surely, 2^243120532 is an apocalyptic number.

It is an amenable number.

243120532 is a deficient number, since it is larger than the sum of its proper divisors (182745888).

243120532 is a wasteful number, since it uses less digits than its factorization.

243120532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57930 (or 57928 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 243120532 is about 15592.3228545333. The cubic root of 243120532 is about 624.1283054430.

Adding to 243120532 its reverse (235021342), we get a palindrome (478141874).

The spelling of 243120532 in words is "two hundred forty-three million, one hundred twenty thousand, five hundred thirty-two".