13531352245 has 4 divisors (see below), whose sum is σ = 16237622700. Its totient is φ = 10825081792.

The previous prime is 13531352243. The next prime is 13531352279. The reversal of 13531352245 is 54225313531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54225313531 = 487 ⋅111345613.

It can be written as a sum of positive squares in 2 ways, for example, as 8365480369 + 5165871876 = 91463^2 + 71874^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531352245 - 2¹ = 13531352243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13531352245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531352243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353135220 + ... + 1353135229.

It is an arithmetic number, because the mean of its divisors is an integer number (4059405675).

Almost surely, 2^13531352245 is an apocalyptic number.

It is an amenable number.

13531352245 is a deficient number, since it is larger than the sum of its proper divisors (2706270455).

13531352245 is an equidigital number, since it uses as much as digits as its factorization.

13531352245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706270454.

The product of its digits is 54000, while the sum is 34.

Adding to 13531352245 its reverse (54225313531), we get a palindrome (67756665776).

The spelling of 13531352245 in words is "thirteen billion, five hundred thirty-one million, three hundred fifty-two thousand, two hundred forty-five".