13163128 has 32 divisors (see below), whose sum is σ = 27209520. Its totient is φ = 5920000.

The previous prime is 13163119. The next prime is 13163131. The reversal of 13163128 is 82136131.

13163128 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8148 + ... + 9628.

Almost surely, 2^13163128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13163128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13604760).

13163128 is an abundant number, since it is smaller than the sum of its proper divisors (14046392).

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

13163128 is a wasteful number, since it uses less digits than its factorization.

13163128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1595 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 13163128 is about 3628.1025343835. The cubic root of 13163128 is about 236.1128924597.

Adding to 13163128 its reverse (82136131), we get a palindrome (95299259).

It can be divided in two parts, 1316 and 3128, that added together give a palindrome (4444).

The spelling of 13163128 in words is "thirteen million, one hundred sixty-three thousand, one hundred twenty-eight".