243051552 has 72 divisors (see below), whose sum is σ = 715036140. Its totient is φ = 78220800.

The previous prime is 243051541. The next prime is 243051559. The reversal of 243051552 is 255150342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 216796176 + 26255376 = 14724^2 + 5124^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (243051559) 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 in 11 ways as a sum of consecutive naturals, for example, 6199 + ... + 22902.

Almost surely, 2^243051552 is an apocalyptic number.

It is an amenable number.

243051552 is an abundant number, since it is smaller than the sum of its proper divisors (471984588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243051552 is a wasteful number, since it uses less digits than its factorization.

243051552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29146 (or 29135 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 243051552 is about 15590.1107116018. The cubic root of 243051552 is about 624.0692723884.

The spelling of 243051552 in words is "two hundred forty-three million, fifty-one thousand, five hundred fifty-two".