243155305232 has 30 divisors (see below), whose sum is σ = 548029879758. Its totient is φ = 104209416192.

The previous prime is 243155305231. The next prime is 243155305243. The reversal of 243155305232 is 232503551342.

It can be written as a sum of positive squares in only one way, i.e., 149803057936 + 93352247296 = 387044^2 + 305536^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 243155305192 and 243155305201.

It is not an unprimeable number, because it can be changed into a prime (243155305231) 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 5 ways as a sum of consecutive naturals, for example, 155072753 + ... + 155074320.

Almost surely, 2^243155305232 is an apocalyptic number.

It is an amenable number.

243155305232 is an abundant number, since it is smaller than the sum of its proper divisors (304874574526).

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

243155305232 is a wasteful number, since it uses less digits than its factorization.

243155305232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310147095 (or 310147082 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 243155305232 its reverse (232503551342), we get a palindrome (475658856574).

The spelling of 243155305232 in words is "two hundred forty-three billion, one hundred fifty-five million, three hundred five thousand, two hundred thirty-two".