215213 has 8 divisors (see below), whose sum is σ = 232320. Its totient is φ = 198720.

The previous prime is 215197. The next prime is 215239. The reversal of 215213 is 312512.

It is a happy number.

215213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215213 - 2⁴ = 215197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (29040).

2²¹⁵²¹³ is an apocalyptic number.

It is an amenable number.

215213 is a deficient number, since it is larger than the sum of its proper divisors (17107).

215213 is a wasteful number, since it uses less digits than its factorization.

215213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its digits is 60, while the sum is 14.

The square root of 215213 is about 463.9105517231. The cubic root of 215213 is about 59.9270409485.

Adding to 215213 its reverse (312512), we get a palindrome (527725).

The spelling of 215213 in words is "two hundred fifteen thousand, two hundred thirteen".