245344813 has 16 divisors (see below), whose sum is σ = 287113600. Its totient is φ = 209563200.

The previous prime is 245344811. The next prime is 245344837. The reversal of 245344813 is 318443542.

It is not a de Polignac number, because 245344813 - 2¹ = 245344811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245344811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112453 + ... + 114613.

It is an arithmetic number, because the mean of its divisors is an integer number (17944600).

Almost surely, 2^245344813 is an apocalyptic number.

It is an amenable number.

245344813 is a deficient number, since it is larger than the sum of its proper divisors (41768787).

245344813 is an equidigital number, since it uses as much as digits as its factorization.

245344813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513 (or 2499 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 245344813 is about 15663.4866169701. The cubic root of 245344813 is about 626.0258889217.

The spelling of 245344813 in words is "two hundred forty-five million, three hundred forty-four thousand, eight hundred thirteen".