245039345 has 16 divisors (see below), whose sum is σ = 311743488. Its totient is φ = 184576320.

The previous prime is 245039317. The next prime is 245039383. The reversal of 245039345 is 543930542.

It is not a de Polignac number, because 245039345 - 2⁸ = 245039089 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 15629 + ... + 27098.

It is an arithmetic number, because the mean of its divisors is an integer number (19483968).

Almost surely, 2^245039345 is an apocalyptic number.

It is an amenable number.

245039345 is a deficient number, since it is larger than the sum of its proper divisors (66704143).

245039345 is a wasteful number, since it uses less digits than its factorization.

245039345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42800.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 245039345 is about 15653.7326219659. The cubic root of 245039345 is about 625.7659686172.

Adding to 245039345 its reverse (543930542), we get a palindrome (788969887).

The spelling of 245039345 in words is "two hundred forty-five million, thirty-nine thousand, three hundred forty-five".