611213 has 2 divisors, whose sum is σ = 611214. Its totient is φ = 611212.

The previous prime is 611207. The next prime is 611257. The reversal of 611213 is 312116.

611213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605284 + 5929 = 778^2 + 77^2 .

It is a cyclic number.

It is not a de Polignac number, because 611213 - 2⁸ = 610957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305606 + 305607.

It is an arithmetic number, because the mean of its divisors is an integer number (305607).

2⁶¹¹²¹³ is an apocalyptic number.

It is an amenable number.

611213 is a deficient number, since it is larger than the sum of its proper divisors (1).

611213 is an equidigital number, since it uses as much as digits as its factorization.

611213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 14.

The square root of 611213 is about 781.8011256068. The cubic root of 611213 is about 84.8654387645.

Adding to 611213 its reverse (312116), we get a palindrome (923329).

The spelling of 611213 in words is "six hundred eleven thousand, two hundred thirteen".