243224534215141 has 4 divisors (see below), whose sum is σ = 243387881788300. Its totient is φ = 243061186641984.

The previous prime is 243224534215099. The next prime is 243224534215231. The reversal of 243224534215141 is 141512435422342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110816592086916 + 132407942128225 = 10526946^2 + 11506865^2 .

It is a cyclic number.

It is not a de Polignac number, because 243224534215141 - 2¹¹ = 243224534213093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243224534215541) 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, 81673784346 + ... + 81673787323.

It is an arithmetic number, because the mean of its divisors is an integer number (60846970447075).

Almost surely, 2^{243224534215141} is an apocalyptic number.

It is an amenable number.

243224534215141 is a deficient number, since it is larger than the sum of its proper divisors (163347573159).

243224534215141 is a wasteful number, since it uses less digits than its factorization.

243224534215141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163347573158.

The product of its digits is 921600, while the sum is 43.

Adding to 243224534215141 its reverse (141512435422342), we get a palindrome (384736969637483).

The spelling of 243224534215141 in words is "two hundred forty-three trillion, two hundred twenty-four billion, five hundred thirty-four million, two hundred fifteen thousand, one hundred forty-one".