224102261 has 2 divisors, whose sum is σ = 224102262. Its totient is φ = 224102260.

The previous prime is 224102257. The next prime is 224102299. The reversal of 224102261 is 162201422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222159025 + 1943236 = 14905^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 224102261 - 2² = 224102257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224102161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112051130 + 112051131.

It is an arithmetic number, because the mean of its divisors is an integer number (112051131).

Almost surely, 2^224102261 is an apocalyptic number.

It is an amenable number.

224102261 is a deficient number, since it is larger than the sum of its proper divisors (1).

224102261 is an equidigital number, since it uses as much as digits as its factorization.

224102261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 224102261 is about 14970.0454575128. The cubic root of 224102261 is about 607.4101983582.

Adding to 224102261 its reverse (162201422), we get a palindrome (386303683).

The spelling of 224102261 in words is "two hundred twenty-four million, one hundred two thousand, two hundred sixty-one".