13531202445 has 16 divisors (see below), whose sum is σ = 22923449280. Its totient is φ = 6792132864.

The previous prime is 13531202383. The next prime is 13531202449. The reversal of 13531202445 is 54420213531.

It is not a de Polignac number, because 13531202445 - 2⁹ = 13531201933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531202449) 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, 26531515 + ... + 26532024.

It is an arithmetic number, because the mean of its divisors is an integer number (1432715580).

Almost surely, 2^13531202445 is an apocalyptic number.

13531202445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531202445 is a deficient number, since it is larger than the sum of its proper divisors (9392246835).

13531202445 is a wasteful number, since it uses less digits than its factorization.

13531202445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53063564.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 13531202445 its reverse (54420213531), we get a palindrome (67951415976).

The spelling of 13531202445 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, four hundred forty-five".