245603345 has 16 divisors (see below), whose sum is σ = 317837520. Its totient is φ = 181115904.

The previous prime is 245603333. The next prime is 245603387. The reversal of 245603345 is 543306542.

It can be written as a sum of positive squares in 8 ways, for example, as 16777216 + 228826129 = 4096^2 + 15127^2 .

It is a cyclic number.

It is not a de Polignac number, because 245603345 - 2⁸ = 245603089 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 53501 + ... + 57909.

It is an arithmetic number, because the mean of its divisors is an integer number (19864845).

Almost surely, 2^245603345 is an apocalyptic number.

It is an amenable number.

245603345 is a deficient number, since it is larger than the sum of its proper divisors (72234175).

245603345 is a wasteful number, since it uses less digits than its factorization.

245603345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 245603345 is about 15671.7371404704. The cubic root of 245603345 is about 626.2457032413.

Adding to 245603345 its reverse (543306542), we get a palindrome (788909887).

The spelling of 245603345 in words is "two hundred forty-five million, six hundred three thousand, three hundred forty-five".