13256213 has 4 divisors (see below), whose sum is σ = 13269900. Its totient is φ = 13242528.

The previous prime is 13256207. The next prime is 13256237. The reversal of 13256213 is 31265231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6666724 + 6589489 = 2582^2 + 2567^2 .

It is a cyclic number.

It is not a de Polignac number, because 13256213 - 2¹⁶ = 13190677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13250213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5270 + ... + 7367.

It is an arithmetic number, because the mean of its divisors is an integer number (3317475).

Almost surely, 2^13256213 is an apocalyptic number.

It is an amenable number.

13256213 is a deficient number, since it is larger than the sum of its proper divisors (13687).

13256213 is a wasteful number, since it uses less digits than its factorization.

13256213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13686.

The product of its digits is 1080, while the sum is 23.

The square root of 13256213 is about 3640.9082658040. The cubic root of 13256213 is about 236.6681546778.

The spelling of 13256213 in words is "thirteen million, two hundred fifty-six thousand, two hundred thirteen".