13545140252 has 48 divisors (see below), whose sum is σ = 29225085120. Its totient is φ = 5360489472.

The previous prime is 13545140143. The next prime is 13545140267. The reversal of 13545140252 is 25204154531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243227 + ... + 293682.

It is an arithmetic number, because the mean of its divisors is an integer number (608855940).

Almost surely, 2^13545140252 is an apocalyptic number.

It is an amenable number.

13545140252 is an abundant number, since it is smaller than the sum of its proper divisors (15679944868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13545140252 is a wasteful number, since it uses less digits than its factorization.

13545140252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536990 (or 536988 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 13545140252 its reverse (25204154531), we get a palindrome (38749294783).

The spelling of 13545140252 in words is "thirteen billion, five hundred forty-five million, one hundred forty thousand, two hundred fifty-two".