243134133445 has 16 divisors (see below), whose sum is σ = 333456139008. Its totient is φ = 166713027840.

The previous prime is 243134133413. The next prime is 243134133449. The reversal of 243134133445 is 544331431342.

It is not a de Polignac number, because 243134133445 - 2⁵ = 243134133413 is a prime.

It is a super-2 number, since 2×243134133445² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243134133449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695565 + ... + 984925.

It is an arithmetic number, because the mean of its divisors is an integer number (20841008688).

Almost surely, 2^243134133445 is an apocalyptic number.

It is an amenable number.

243134133445 is a deficient number, since it is larger than the sum of its proper divisors (90322005563).

243134133445 is a wasteful number, since it uses less digits than its factorization.

243134133445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313380.

The product of its digits is 207360, while the sum is 37.

Adding to 243134133445 its reverse (544331431342), we get a palindrome (787465564787).

The spelling of 243134133445 in words is "two hundred forty-three billion, one hundred thirty-four million, one hundred thirty-three thousand, four hundred forty-five".