13163256 has 64 divisors (see below), whose sum is σ = 36900000. Its totient is φ = 4347648.

The previous prime is 13163237. The next prime is 13163261. The reversal of 13163256 is 65236131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31980 + ... + 32388.

Almost surely, 2^13163256 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 13163256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18450000).

13163256 is an abundant number, since it is smaller than the sum of its proper divisors (23736744).

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

13163256 is a wasteful number, since it uses less digits than its factorization.

13163256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 563 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 13163256 is about 3628.1201744154. The cubic root of 13163256 is about 236.1136577882.

Adding to 13163256 its reverse (65236131), we get a palindrome (78399387).

The spelling of 13163256 in words is "thirteen million, one hundred sixty-three thousand, two hundred fifty-six".