13445434143 has 6 divisors (see below), whose sum is σ = 19421182664. Its totient is φ = 8963622756.

The previous prime is 13445434127. The next prime is 13445434199. The reversal of 13445434143 is 34143454431.

13445434143 is a `hidden beast` number, since 1 + 34 + 4 + 543 + 41 + 43 = 666.

It is not a de Polignac number, because 13445434143 - 2⁴ = 13445434127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13445434098 and 13445434107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445434043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 746968555 + ... + 746968572.

Almost surely, 2^13445434143 is an apocalyptic number.

13445434143 is a deficient number, since it is larger than the sum of its proper divisors (5975748521).

13445434143 is a wasteful number, since it uses less digits than its factorization.

13445434143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493937133 (or 1493937130 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

Adding to 13445434143 its reverse (34143454431), we get a palindrome (47588888574).

The spelling of 13445434143 in words is "thirteen billion, four hundred forty-five million, four hundred thirty-four thousand, one hundred forty-three".