243140551512 has 32 divisors (see below), whose sum is σ = 608886936000. Its totient is φ = 80908776224.

The previous prime is 243140551499. The next prime is 243140551513. The reversal of 243140551512 is 215155041342.

It is a super-2 number, since 2×243140551512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243140551513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8615262 + ... + 8643437.

It is an arithmetic number, because the mean of its divisors is an integer number (19027716750).

Almost surely, 2^243140551512 is an apocalyptic number.

It is an amenable number.

243140551512 is an abundant number, since it is smaller than the sum of its proper divisors (365746384488).

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

243140551512 is a wasteful number, since it uses less digits than its factorization.

243140551512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17259295 (or 17259291 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 243140551512 its reverse (215155041342), we get a palindrome (458295592854).

The spelling of 243140551512 in words is "two hundred forty-three billion, one hundred forty million, five hundred fifty-one thousand, five hundred twelve".