13540453244 has 12 divisors (see below), whose sum is σ = 23917249944. Its totient is φ = 6706953264.

The previous prime is 13540453229. The next prime is 13540453247. The reversal of 13540453244 is 44235404531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13540453247) 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 3 ways as a sum of consecutive naturals, for example, 15817859 + ... + 15818714.

It is an arithmetic number, because the mean of its divisors is an integer number (1993104162).

Almost surely, 2^13540453244 is an apocalyptic number.

It is an amenable number.

13540453244 is a deficient number, since it is larger than the sum of its proper divisors (10376796700).

13540453244 is a wasteful number, since it uses less digits than its factorization.

13540453244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31636684 (or 31636682 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 13540453244 its reverse (44235404531), we get a palindrome (57775857775).

The spelling of 13540453244 in words is "thirteen billion, five hundred forty million, four hundred fifty-three thousand, two hundred forty-four".