245280797 has 2 divisors, whose sum is σ = 245280798. Its totient is φ = 245280796.

The previous prime is 245280793. The next prime is 245280799. The reversal of 245280797 is 797082542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201469636 + 43811161 = 14194^2 + 6619^2 .

It is a cyclic number.

It is not a de Polignac number, because 245280797 - 2² = 245280793 is a prime.

Together with 245280799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245280793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122640398 + 122640399.

It is an arithmetic number, because the mean of its divisors is an integer number (122640399).

Almost surely, 2^245280797 is an apocalyptic number.

It is an amenable number.

245280797 is a deficient number, since it is larger than the sum of its proper divisors (1).

245280797 is an equidigital number, since it uses as much as digits as its factorization.

245280797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 245280797 is about 15661.4430050363. The cubic root of 245280797 is about 625.9714360901.

The spelling of 245280797 in words is "two hundred forty-five million, two hundred eighty thousand, seven hundred ninety-seven".