13256541 has 10 divisors (see below), whose sum is σ = 19803102. Its totient is φ = 8837640.

The previous prime is 13256527. The next prime is 13256563. The reversal of 13256541 is 14565231.

13256541 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 654 + 1 = 666.

13256541 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10208025 + 3048516 = 3195^2 + 1746^2 .

It is not a de Polignac number, because 13256541 - 2⁹ = 13256029 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13256941) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 81750 + ... + 81911.

Almost surely, 2^13256541 is an apocalyptic number.

It is an amenable number.

13256541 is a deficient number, since it is larger than the sum of its proper divisors (6546561).

13256541 is an equidigital number, since it uses as much as digits as its factorization.

13256541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163673 (or 163664 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 13256541 is about 3640.9533092310. The cubic root of 13256541 is about 236.6701066308.

The spelling of 13256541 in words is "thirteen million, two hundred fifty-six thousand, five hundred forty-one".