245244717 has 12 divisors (see below), whose sum is σ = 355506684. Its totient is φ = 162912960.

The previous prime is 245244697. The next prime is 245244719. The reversal of 245244717 is 717442542.

It can be written as a sum of positive squares in 2 ways, for example, as 69655716 + 175589001 = 8346^2 + 13251^2 .

It is not a de Polignac number, because 245244717 - 2¹⁰ = 245243693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245244719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45958 + ... + 51015.

It is an arithmetic number, because the mean of its divisors is an integer number (29625557).

Almost surely, 2^245244717 is an apocalyptic number.

It is an amenable number.

245244717 is a deficient number, since it is larger than the sum of its proper divisors (110261967).

245244717 is a wasteful number, since it uses less digits than its factorization.

245244717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97260 (or 97257 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 245244717 is about 15660.2910892486. The cubic root of 245244717 is about 625.9407418040.

It can be divided in two parts, 24524 and 4717, that added together give a square (29241 = 171²).

The spelling of 245244717 in words is "two hundred forty-five million, two hundred forty-four thousand, seven hundred seventeen".