224429213 has 2 divisors, whose sum is σ = 224429214. Its totient is φ = 224429212.

The previous prime is 224429167. The next prime is 224429221. The reversal of 224429213 is 312924422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199007449 + 25421764 = 14107^2 + 5042^2 .

It is a cyclic number.

It is not a de Polignac number, because 224429213 - 2²⁶ = 157320349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224429113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112214606 + 112214607.

It is an arithmetic number, because the mean of its divisors is an integer number (112214607).

Almost surely, 2^224429213 is an apocalyptic number.

It is an amenable number.

224429213 is a deficient number, since it is larger than the sum of its proper divisors (1).

224429213 is an equidigital number, since it uses as much as digits as its factorization.

224429213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 224429213 is about 14980.9616847518. The cubic root of 224429213 is about 607.7054467231.

The spelling of 224429213 in words is "two hundred twenty-four million, four hundred twenty-nine thousand, two hundred thirteen".