243134212445 has 32 divisors (see below), whose sum is σ = 312447801600. Its totient is φ = 181218622464.

The previous prime is 243134212429. The next prime is 243134212457. The reversal of 243134212445 is 544212431342.

It is a cyclic number.

It is not a de Polignac number, because 243134212445 - 2⁴ = 243134212429 is a prime.

It is a super-2 number, since 2×243134212445² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 575189 + ... + 903941.

It is an arithmetic number, because the mean of its divisors is an integer number (9763993800).

Almost surely, 2^243134212445 is an apocalyptic number.

It is an amenable number.

243134212445 is a deficient number, since it is larger than the sum of its proper divisors (69313589155).

243134212445 is a wasteful number, since it uses less digits than its factorization.

243134212445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328949.

The product of its digits is 92160, while the sum is 35.

Adding to 243134212445 its reverse (544212431342), we get a palindrome (787346643787).

The spelling of 243134212445 in words is "two hundred forty-three billion, one hundred thirty-four million, two hundred twelve thousand, four hundred forty-five".