13653213 has 24 divisors (see below), whose sum is σ = 21368160. Its totient is φ = 7731360.

The previous prime is 13653197. The next prime is 13653221. The reversal of 13653213 is 31235631.

It is a happy number.

13653213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13653213 - 2⁴ = 13653197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13653713) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18903 + ... + 19611.

It is an arithmetic number, because the mean of its divisors is an integer number (890340).

Almost surely, 2^13653213 is an apocalyptic number.

It is an amenable number.

13653213 is a deficient number, since it is larger than the sum of its proper divisors (7714947).

13653213 is a wasteful number, since it uses less digits than its factorization.

13653213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857 (or 850 counting only the distinct ones).

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

The square root of 13653213 is about 3695.0254396959. The cubic root of 13653213 is about 239.0075509831.

Adding to 13653213 its reverse (31235631), we get a palindrome (44888844).

The spelling of 13653213 in words is "thirteen million, six hundred fifty-three thousand, two hundred thirteen".