224102257 has 2 divisors, whose sum is σ = 224102258. Its totient is φ = 224102256.

The previous prime is 224102243. The next prime is 224102261. The reversal of 224102257 is 752201422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160883856 + 63218401 = 12684^2 + 7951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224102257 is a prime.

It is not a weakly prime, because it can be changed into another prime (224102657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112051128 + 112051129.

It is an arithmetic number, because the mean of its divisors is an integer number (112051129).

Almost surely, 2^224102257 is an apocalyptic number.

It is an amenable number.

224102257 is a deficient number, since it is larger than the sum of its proper divisors (1).

224102257 is an equidigital number, since it uses as much as digits as its factorization.

224102257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 224102257 is about 14970.0453239127. The cubic root of 224102257 is about 607.4101947443.

Adding to 224102257 its reverse (752201422), we get a palindrome (976303679).

The spelling of 224102257 in words is "two hundred twenty-four million, one hundred two thousand, two hundred fifty-seven".