13425213 has 4 divisors (see below), whose sum is σ = 17900288. Its totient is φ = 8950140.

The previous prime is 13425187. The next prime is 13425233. The reversal of 13425213 is 31252431.

13425213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13425213 - 2⁶ = 13425149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13425213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13425233) 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, 2237533 + ... + 2237538.

It is an arithmetic number, because the mean of its divisors is an integer number (4475072).

Almost surely, 2^13425213 is an apocalyptic number.

It is an amenable number.

13425213 is a deficient number, since it is larger than the sum of its proper divisors (4475075).

13425213 is an equidigital number, since it uses as much as digits as its factorization.

13425213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475074.

The product of its digits is 720, while the sum is 21.

The square root of 13425213 is about 3664.0432584783. The cubic root of 13425213 is about 237.6696509007.

Adding to 13425213 its reverse (31252431), we get a palindrome (44677644).

It can be divided in two parts, 1342 and 5213, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 13425213 in words is "thirteen million, four hundred twenty-five thousand, two hundred thirteen".