223424261 has 2 divisors, whose sum is σ = 223424262. Its totient is φ = 223424260.

The previous prime is 223424213. The next prime is 223424269. The reversal of 223424261 is 162424322.

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., 221116900 + 2307361 = 14870^2 + 1519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223424261 is a prime.

It is a super-2 number, since 2×223424261² = 99836800806792242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223424261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223424269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111712130 + 111712131.

It is an arithmetic number, because the mean of its divisors is an integer number (111712131).

Almost surely, 2^223424261 is an apocalyptic number.

It is an amenable number.

223424261 is a deficient number, since it is larger than the sum of its proper divisors (1).

223424261 is an equidigital number, since it uses as much as digits as its factorization.

223424261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 223424261 is about 14947.3830819980. The cubic root of 223424261 is about 606.7970257175.

Adding to 223424261 its reverse (162424322), we get a palindrome (385848583).

The spelling of 223424261 in words is "two hundred twenty-three million, four hundred twenty-four thousand, two hundred sixty-one".