13136256 has 160 divisors (see below), whose sum is σ = 44924880. Its totient is φ = 3732480.

The previous prime is 13136251. The next prime is 13136267. The reversal of 13136256 is 65263131.

13136256 is a `hidden beast` number, since 1 + 31 + 3 + 625 + 6 = 666.

It is a super-2 number, since 2×13136256² = 345122443395072, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13136251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72486 + ... + 72666.

Almost surely, 2^13136256 is an apocalyptic number.

13136256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13136256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22462440).

13136256 is an abundant number, since it is smaller than the sum of its proper divisors (31788624).

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

13136256 is an equidigital number, since it uses as much as digits as its factorization.

13136256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 193 counting only the distinct ones).

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

The square root of 13136256 is about 3624.3973292121. The cubic root of 13136256 is about 235.9521113212.

Adding to 13136256 its reverse (65263131), we get a palindrome (78399387).

It can be divided in two parts, 1313 and 6256, that multiplied together give a palindrome (8214128).

The spelling of 13136256 in words is "thirteen million, one hundred thirty-six thousand, two hundred fifty-six".