245222441 has 2 divisors, whose sum is σ = 245222442. Its totient is φ = 245222440.

The previous prime is 245222429. The next prime is 245222443. The reversal of 245222441 is 144222542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218182441 + 27040000 = 14771^2 + 5200^2 .

It is a cyclic number.

It is not a de Polignac number, because 245222441 - 2⁶ = 245222377 is a prime.

Together with 245222443, it forms a pair of twin primes.

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 245222441.

It is not a weakly prime, because it can be changed into another prime (245222443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122611220 + 122611221.

It is an arithmetic number, because the mean of its divisors is an integer number (122611221).

Almost surely, 2^245222441 is an apocalyptic number.

It is an amenable number.

245222441 is a deficient number, since it is larger than the sum of its proper divisors (1).

245222441 is an equidigital number, since it uses as much as digits as its factorization.

245222441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 26.

The square root of 245222441 is about 15659.5798474927. The cubic root of 245222441 is about 625.9217894716.

Adding to 245222441 its reverse (144222542), we get a palindrome (389444983).

The spelling of 245222441 in words is "two hundred forty-five million, two hundred twenty-two thousand, four hundred forty-one".