223144213 has 4 divisors (see below), whose sum is σ = 223806700. Its totient is φ = 222481728.

The previous prime is 223144211. The next prime is 223144219. The reversal of 223144213 is 312441322.

223144213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109977169 + 113167044 = 10487^2 + 10638^2 .

It is a cyclic number.

It is not a de Polignac number, because 223144213 - 2¹ = 223144211 is a prime.

It is a super-3 number, since 3×223144213³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223144211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330738 + ... + 331411.

It is an arithmetic number, because the mean of its divisors is an integer number (55951675).

Almost surely, 2^223144213 is an apocalyptic number.

It is an amenable number.

223144213 is a deficient number, since it is larger than the sum of its proper divisors (662487).

223144213 is an equidigital number, since it uses as much as digits as its factorization.

223144213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662486.

The product of its digits is 1152, while the sum is 22.

The square root of 223144213 is about 14938.0123510459. The cubic root of 223144213 is about 606.5433926490.

Adding to 223144213 its reverse (312441322), we get a palindrome (535585535).

The spelling of 223144213 in words is "two hundred twenty-three million, one hundred forty-four thousand, two hundred thirteen".