213253 has 2 divisors, whose sum is σ = 213254. Its totient is φ = 213252.

The previous prime is 213247. The next prime is 213263. The reversal of 213253 is 352312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146689 + 66564 = 383^2 + 258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213253 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106626 + 106627.

It is an arithmetic number, because the mean of its divisors is an integer number (106627).

2²¹³²⁵³ is an apocalyptic number.

It is an amenable number.

213253 is a deficient number, since it is larger than the sum of its proper divisors (1).

213253 is an equidigital number, since it uses as much as digits as its factorization.

213253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 16.

The square root of 213253 is about 461.7932437791. The cubic root of 213253 is about 59.7445622170.

Adding to 213253 its reverse (352312), we get a palindrome (565565).

The spelling of 213253 in words is "two hundred thirteen thousand, two hundred fifty-three".