13531145332 has 12 divisors (see below), whose sum is σ = 23896748260. Its totient is φ = 6703502976.

The previous prime is 13531145311. The next prime is 13531145371. The reversal of 13531145332 is 23354113531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3953391376 + 9577753956 = 62876^2 + 97866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13531145294 and 13531145303.

It is a congruent number.

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, 15516933 + ... + 15517804.

Almost surely, 2^13531145332 is an apocalyptic number.

It is an amenable number.

13531145332 is a deficient number, since it is larger than the sum of its proper divisors (10365602928).

13531145332 is a wasteful number, since it uses less digits than its factorization.

13531145332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31034850 (or 31034848 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

Adding to 13531145332 its reverse (23354113531), we get a palindrome (36885258863).

The spelling of 13531145332 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-five thousand, three hundred thirty-two".