13154451543 has 16 divisors (see below), whose sum is σ = 19491432160. Its totient is φ = 8768124288.

The previous prime is 13154451517. The next prime is 13154451553. The reversal of 13154451543 is 34515445131.

13154451543 is a `hidden beast` number, since 1 + 3 + 154 + 451 + 54 + 3 = 666.

It is not a de Polignac number, because 13154451543 - 2²⁹ = 12617580631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13154451498 and 13154451507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13154451503) 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, 130671 + ... + 208287.

It is an arithmetic number, because the mean of its divisors is an integer number (1218214510).

Almost surely, 2^13154451543 is an apocalyptic number.

13154451543 is a deficient number, since it is larger than the sum of its proper divisors (6336980617).

13154451543 is an equidigital number, since it uses as much as digits as its factorization.

13154451543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83903 (or 83897 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 13154451543 its reverse (34515445131), we get a palindrome (47669896674).

The spelling of 13154451543 in words is "thirteen billion, one hundred fifty-four million, four hundred fifty-one thousand, five hundred forty-three".