13543240052 has 36 divisors (see below), whose sum is σ = 26080010880. Its totient is φ = 6136278192.

The previous prime is 13543240027. The next prime is 13543240057. The reversal of 13543240052 is 25004234531.

It is a happy number.

It is a super-2 number, since 2×13543240052² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13543239997 and 13543240024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13543240057) 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 11 ways as a sum of consecutive naturals, for example, 128228 + ... + 208635.

Almost surely, 2^13543240052 is an apocalyptic number.

It is an amenable number.

13543240052 is a deficient number, since it is larger than the sum of its proper divisors (12536770828).

13543240052 is a wasteful number, since it uses less digits than its factorization.

13543240052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336932 (or 336907 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 13543240052 its reverse (25004234531), we get a palindrome (38547474583).

The spelling of 13543240052 in words is "thirteen billion, five hundred forty-three million, two hundred forty thousand, fifty-two".