243032144 has 20 divisors (see below), whose sum is σ = 471469824. Its totient is φ = 121362528.

The previous prime is 243032137. The next prime is 243032149. The reversal of 243032144 is 441230342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243032149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4049 + ... + 22415.

Almost surely, 2^243032144 is an apocalyptic number.

It is an amenable number.

243032144 is a deficient number, since it is larger than the sum of its proper divisors (228437680).

243032144 is a wasteful number, since it uses less digits than its factorization.

243032144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19202 (or 19196 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 243032144 is about 15589.4882533071. The cubic root of 243032144 is about 624.0526610170.

Adding to 243032144 its reverse (441230342), we get a palindrome (684262486).

The spelling of 243032144 in words is "two hundred forty-three million, thirty-two thousand, one hundred forty-four".