13445131252 has 48 divisors (see below), whose sum is σ = 28316977920. Its totient is φ = 5461074432.

The previous prime is 13445131247. The next prime is 13445131379. The reversal of 13445131252 is 25213154431.

13445131252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25573 + ... + 165964.

It is an arithmetic number, because the mean of its divisors is an integer number (589937040).

Almost surely, 2^13445131252 is an apocalyptic number.

It is an amenable number.

13445131252 is an abundant number, since it is smaller than the sum of its proper divisors (14871846668).

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

13445131252 is a wasteful number, since it uses less digits than its factorization.

13445131252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191680 (or 191678 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

Adding to 13445131252 its reverse (25213154431), we get a palindrome (38658285683).

The spelling of 13445131252 in words is "thirteen billion, four hundred forty-five million, one hundred thirty-one thousand, two hundred fifty-two".