245982017 has 2 divisors, whose sum is σ = 245982018. Its totient is φ = 245982016.

The previous prime is 245981969. The next prime is 245982043. The reversal of 245982017 is 710289542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216648961 + 29333056 = 14719^2 + 5416^2 .

It is a cyclic number.

It is not a de Polignac number, because 245982017 - 2⁸ = 245981761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245982097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122991008 + 122991009.

It is an arithmetic number, because the mean of its divisors is an integer number (122991009).

Almost surely, 2^245982017 is an apocalyptic number.

It is an amenable number.

245982017 is a deficient number, since it is larger than the sum of its proper divisors (1).

245982017 is an equidigital number, since it uses as much as digits as its factorization.

245982017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 245982017 is about 15683.8138537793. The cubic root of 245982017 is about 626.5673871635.

The spelling of 245982017 in words is "two hundred forty-five million, nine hundred eighty-two thousand, seventeen".