13531144052 has 12 divisors (see below), whose sum is σ = 24319488900. Its totient is φ = 6582718656.

The previous prime is 13531144043. The next prime is 13531144061. The reversal of 13531144052 is 25044113531.

It is an interprime number because it is at equal distance from previous prime (13531144043) and next prime (13531144061).

It can be written as a sum of positive squares in 2 ways, for example, as 11790919396 + 1740224656 = 108586^2 + 41716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45713177 + ... + 45713472.

It is an arithmetic number, because the mean of its divisors is an integer number (2026624075).

Almost surely, 2^13531144052 is an apocalyptic number.

It is an amenable number.

13531144052 is a deficient number, since it is larger than the sum of its proper divisors (10788344848).

13531144052 is a wasteful number, since it uses less digits than its factorization.

13531144052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91426690 (or 91426688 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 13531144052 its reverse (25044113531), we get a palindrome (38575257583).

The spelling of 13531144052 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-four thousand, fifty-two".