222613 has 2 divisors, whose sum is σ = 222614. Its totient is φ = 222612.

The previous prime is 222601. The next prime is 222619. The reversal of 222613 is 316222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161604 + 61009 = 402^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 222613 - 2¹⁷ = 91541 is a prime.

222613 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111306 + 111307.

It is an arithmetic number, because the mean of its divisors is an integer number (111307).

2²²²⁶¹³ is an apocalyptic number.

It is an amenable number.

222613 is a deficient number, since it is larger than the sum of its proper divisors (1).

222613 is an equidigital number, since it uses as much as digits as its factorization.

222613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 16.

The square root of 222613 is about 471.8188211591. The cubic root of 222613 is about 60.6061701538.

Adding to 222613 its reverse (316222), we get a palindrome (538835).

The spelling of 222613 in words is "two hundred twenty-two thousand, six hundred thirteen".