224223913 has 2 divisors, whose sum is σ = 224223914. Its totient is φ = 224223912.

The previous prime is 224223889. The next prime is 224223917. The reversal of 224223913 is 319322422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210482064 + 13741849 = 14508^2 + 3707^2 .

It is a cyclic number.

It is not a de Polignac number, because 224223913 - 2²⁵ = 190669481 is a prime.

It is a super-2 number, since 2×224223913² = 100552726322063138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (224223917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112111956 + 112111957.

It is an arithmetic number, because the mean of its divisors is an integer number (112111957).

Almost surely, 2^224223913 is an apocalyptic number.

It is an amenable number.

224223913 is a deficient number, since it is larger than the sum of its proper divisors (1).

224223913 is an equidigital number, since it uses as much as digits as its factorization.

224223913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 224223913 is about 14974.1080869613. The cubic root of 224223913 is about 607.5200876240.

It can be divided in two parts, 22422 and 3913, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 224223913 in words is "two hundred twenty-four million, two hundred twenty-three thousand, nine hundred thirteen".