243134312541 has 8 divisors (see below), whose sum is σ = 338273826240. Its totient is φ = 155042170272.

The previous prime is 243134312537. The next prime is 243134312543. The reversal of 243134312541 is 145213431342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243134312541 - 2² = 243134312537 is a prime.

It is a super-2 number, since 2×243134312541² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243134312543) 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, 1761842776 + ... + 1761842913.

It is an arithmetic number, because the mean of its divisors is an integer number (42284228280).

Almost surely, 2^243134312541 is an apocalyptic number.

It is an amenable number.

243134312541 is a deficient number, since it is larger than the sum of its proper divisors (95139513699).

243134312541 is a wasteful number, since it uses less digits than its factorization.

243134312541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523685715.

The product of its digits is 34560, while the sum is 33.

Adding to 243134312541 its reverse (145213431342), we get a palindrome (388347743883).

The spelling of 243134312541 in words is "two hundred forty-three billion, one hundred thirty-four million, three hundred twelve thousand, five hundred forty-one".