243132040455 has 32 divisors (see below), whose sum is σ = 395441922240. Its totient is φ = 127527444480.

The previous prime is 243132040453. The next prime is 243132040493. The reversal of 243132040455 is 554040231342.

It is not a de Polignac number, because 243132040455 - 2¹ = 243132040453 is a prime.

It is a super-2 number, since 2×243132040455² (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 (243132040451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9533461 + ... + 9558929.

It is an arithmetic number, because the mean of its divisors is an integer number (12357560070).

Almost surely, 2^243132040455 is an apocalyptic number.

243132040455 is a deficient number, since it is larger than the sum of its proper divisors (152309881785).

243132040455 is a wasteful number, since it uses less digits than its factorization.

243132040455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35971.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 243132040455 its reverse (554040231342), we get a palindrome (797172271797).

The spelling of 243132040455 in words is "two hundred forty-three billion, one hundred thirty-two million, forty thousand, four hundred fifty-five".