243144041553 has 36 divisors (see below), whose sum is σ = 408732280320. Its totient is φ = 138876834096.

The previous prime is 243144041537. The next prime is 243144041597. The reversal of 243144041553 is 355140441342.

243144041553 is a `hidden beast` number, since 24 + 3 + 1 + 4 + 40 + 41 + 553 = 666.

It is not a de Polignac number, because 243144041553 - 2⁴ = 243144041537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243144041953) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 864276 + ... + 1110522.

Almost surely, 2^243144041553 is an apocalyptic number.

It is an amenable number.

243144041553 is a deficient number, since it is larger than the sum of its proper divisors (165588238767).

243144041553 is a wasteful number, since it uses less digits than its factorization.

243144041553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248506 (or 248496 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 243144041553 its reverse (355140441342), we get a palindrome (598284482895).

The spelling of 243144041553 in words is "two hundred forty-three billion, one hundred forty-four million, forty-one thousand, five hundred fifty-three".