13442213 has 4 divisors (see below), whose sum is σ = 13457760. Its totient is φ = 13426668.

The previous prime is 13442201. The next prime is 13442237. The reversal of 13442213 is 31224431.

13442213 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 31224431 = 7 ⋅4460633.

It is a cyclic number.

It is not a de Polignac number, because 13442213 - 2⁸ = 13441957 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 (13442243) 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, 6395 + ... + 8232.

It is an arithmetic number, because the mean of its divisors is an integer number (3364440).

Almost surely, 2^13442213 is an apocalyptic number.

It is an amenable number.

13442213 is a deficient number, since it is larger than the sum of its proper divisors (15547).

13442213 is an equidigital number, since it uses as much as digits as its factorization.

13442213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15546.

The product of its digits is 576, while the sum is 20.

The square root of 13442213 is about 3666.3623661608. The cubic root of 13442213 is about 237.7699268976.

Adding to 13442213 its reverse (31224431), we get a palindrome (44666644).

The spelling of 13442213 in words is "thirteen million, four hundred forty-two thousand, two hundred thirteen".