13530145231 has 8 divisors (see below), whose sum is σ = 13630063104. Its totient is φ = 13430578200.

The previous prime is 13530145217. The next prime is 13530145243. The reversal of 13530145231 is 13254103531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13530145231 is a prime.

It is a super-2 number, since 2×13530145231² (a number of 21 digits) contains 22 as substring.

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 13530145231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530145831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10045 + ... + 164806.

It is an arithmetic number, because the mean of its divisors is an integer number (1703757888).

Almost surely, 2^13530145231 is an apocalyptic number.

13530145231 is a deficient number, since it is larger than the sum of its proper divisors (99917873).

13530145231 is a wasteful number, since it uses less digits than its factorization.

13530145231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175421.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 13530145231 its reverse (13254103531), we get a palindrome (26784248762).

The spelling of 13530145231 in words is "thirteen billion, five hundred thirty million, one hundred forty-five thousand, two hundred thirty-one".