243130144 has 24 divisors (see below), whose sum is σ = 479330460. Its totient is φ = 121395456.

The previous prime is 243130109. The next prime is 243130169. The reversal of 243130144 is 441031342.

It can be written as a sum of positive squares in 2 ways, for example, as 242985744 + 144400 = 15588^2 + 380^2 .

It is a super-2 number, since 2×243130144² = 118224533842921472, which contains 22 as substring.

It is an unprimeable number.

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, 19822 + ... + 29650.

Almost surely, 2^243130144 is an apocalyptic number.

It is an amenable number.

243130144 is a deficient number, since it is larger than the sum of its proper divisors (236200316).

243130144 is an equidigital number, since it uses as much as digits as its factorization.

243130144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10612 (or 10604 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 243130144 is about 15592.6310800968. The cubic root of 243130144 is about 624.1365305020.

Adding to 243130144 its reverse (441031342), we get a palindrome (684161486).

The spelling of 243130144 in words is "two hundred forty-three million, one hundred thirty thousand, one hundred forty-four".