243243243153 has 12 divisors (see below), whose sum is σ = 352647854208. Its totient is φ = 161563776120.

The previous prime is 243243243149. The next prime is 243243243181. The reversal of 243243243153 is 351342342342.

243243243153 is a `hidden beast` number, since 2 + 4 + 32 + 432 + 43 + 153 = 666.

It is not a de Polignac number, because 243243243153 - 2² = 243243243149 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243243243253) 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, 49862925 + ... + 49867802.

It is an arithmetic number, because the mean of its divisors is an integer number (29387321184).

Almost surely, 2^243243243153 is an apocalyptic number.

It is an amenable number.

243243243153 is a deficient number, since it is larger than the sum of its proper divisors (109404611055).

243243243153 is a wasteful number, since it uses less digits than its factorization.

243243243153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99731004 (or 99731001 counting only the distinct ones).

The product of its digits is 207360, while the sum is 36.

Adding to 243243243153 its reverse (351342342342), we get a palindrome (594585585495).

The spelling of 243243243153 in words is "two hundred forty-three billion, two hundred forty-three million, two hundred forty-three thousand, one hundred fifty-three".