13531154155 has 4 divisors (see below), whose sum is σ = 16237384992. Its totient is φ = 10824923320.

The previous prime is 13531154141. The next prime is 13531154177. The reversal of 13531154155 is 55145113531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13531154155 - 2¹⁷ = 13531023083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13531154155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353115411 + ... + 1353115420.

It is an arithmetic number, because the mean of its divisors is an integer number (4059346248).

Almost surely, 2^13531154155 is an apocalyptic number.

13531154155 is a deficient number, since it is larger than the sum of its proper divisors (2706230837).

13531154155 is an equidigital number, since it uses as much as digits as its factorization.

13531154155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706230836.

The product of its digits is 22500, while the sum is 34.

Adding to 13531154155 its reverse (55145113531), we get a palindrome (68676267686).

The spelling of 13531154155 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-four thousand, one hundred fifty-five".