243531052 has 36 divisors (see below), whose sum is σ = 454900320. Its totient is φ = 114052864.

The previous prime is 243531049. The next prime is 243531053. The reversal of 243531052 is 250135342.

It is not an unprimeable number, because it can be changed into a prime (243531053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338349 + ... + 339067.

It is an arithmetic number, because the mean of its divisors is an integer number (12636120).

Almost surely, 2^243531052 is an apocalyptic number.

It is an amenable number.

243531052 is a deficient number, since it is larger than the sum of its proper divisors (211369268).

243531052 is a wasteful number, since it uses less digits than its factorization.

243531052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 243531052 is about 15605.4814728672. The cubic root of 243531052 is about 624.4793975173.

Adding to 243531052 its reverse (250135342), we get a palindrome (493666394).

The spelling of 243531052 in words is "two hundred forty-three million, five hundred thirty-one thousand, fifty-two".