13256133 has 16 divisors (see below), whose sum is σ = 19439616. Its totient is φ = 7968240.

The previous prime is 13256077. The next prime is 13256137. The reversal of 13256133 is 33165231.

It is a happy number.

It is not a de Polignac number, because 13256133 - 2⁹ = 13255621 is a prime.

It is a super-2 number, since 2×13256133² = 351450124227378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13256137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2610 + ... + 5772.

It is an arithmetic number, because the mean of its divisors is an integer number (1214976).

Almost surely, 2^13256133 is an apocalyptic number.

It is an amenable number.

13256133 is a deficient number, since it is larger than the sum of its proper divisors (6183483).

13256133 is a wasteful number, since it uses less digits than its factorization.

13256133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304.

The product of its digits is 1620, while the sum is 24.

The square root of 13256133 is about 3640.8972795178. The cubic root of 13256133 is about 236.6676785868.

It can be divided in two parts, 132 and 56133, that added together give a palindrome (56265).

The spelling of 13256133 in words is "thirteen million, two hundred fifty-six thousand, one hundred thirty-three".