245030221232257 has 2 divisors, whose sum is σ = 245030221232258. Its totient is φ = 245030221232256.

The previous prime is 245030221232233. The next prime is 245030221232347. The reversal of 245030221232257 is 752232122030542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146187831545856 + 98842389686401 = 12090816^2 + 9941951^2 .

It is a cyclic number.

It is not a de Polignac number, because 245030221232257 - 2⁷ = 245030221232129 is a prime.

It is not a weakly prime, because it can be changed into another prime (245030221235257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122515110616128 + 122515110616129.

It is an arithmetic number, because the mean of its divisors is an integer number (122515110616129).

Almost surely, 2^{245030221232257} is an apocalyptic number.

It is an amenable number.

245030221232257 is a deficient number, since it is larger than the sum of its proper divisors (1).

245030221232257 is an equidigital number, since it uses as much as digits as its factorization.

245030221232257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 40.

Adding to 245030221232257 its reverse (752232122030542), we get a palindrome (997262343262799).

The spelling of 245030221232257 in words is "two hundred forty-five trillion, thirty billion, two hundred twenty-one million, two hundred thirty-two thousand, two hundred fifty-seven".