13531154145 has 16 divisors (see below), whose sum is σ = 21680747712. Its totient is φ = 7206315200.

The previous prime is 13531154141. The next prime is 13531154177. The reversal of 13531154145 is 54145113531.

It is a happy number.

It is not a de Polignac number, because 13531154145 - 2² = 13531154141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531154141) 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, 632907 + ... + 653936.

It is an arithmetic number, because the mean of its divisors is an integer number (1355046732).

Almost surely, 2^13531154145 is an apocalyptic number.

13531154145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531154145 is a deficient number, since it is larger than the sum of its proper divisors (8149593567).

13531154145 is a wasteful number, since it uses less digits than its factorization.

13531154145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287552.

The product of its digits is 18000, while the sum is 33.

Adding to 13531154145 its reverse (54145113531), we get a palindrome (67676267676).

The spelling of 13531154145 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-four thousand, one hundred forty-five".