13531124145 has 64 divisors (see below), whose sum is σ = 27361880064. Its totient is φ = 5546257920.

The previous prime is 13531124141. The next prime is 13531124147. The reversal of 13531124145 is 54142113531.

It is not a de Polignac number, because 13531124145 - 2² = 13531124141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531124141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4074 + ... + 164556.

It is an arithmetic number, because the mean of its divisors is an integer number (427529376).

Almost surely, 2^13531124145 is an apocalyptic number.

13531124145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531124145 is an abundant number, since it is smaller than the sum of its proper divisors (13830755919).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13531124145 is a wasteful number, since it uses less digits than its factorization.

13531124145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160582.

The product of its digits is 7200, while the sum is 30.

Adding to 13531124145 its reverse (54142113531), we get a palindrome (67673237676).

The spelling of 13531124145 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-four thousand, one hundred forty-five".