245122505305 has 16 divisors (see below), whose sum is σ = 295414314624. Its totient is φ = 195253886080.

The previous prime is 245122505281. The next prime is 245122505333. The reversal of 245122505305 is 503505221542.

It is a de Polignac number, because none of the positive numbers 2^k-245122505305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2619525 + ... + 2711485.

It is an arithmetic number, because the mean of its divisors is an integer number (18463394664).

Almost surely, 2^245122505305 is an apocalyptic number.

It is an amenable number.

245122505305 is a deficient number, since it is larger than the sum of its proper divisors (50291809319).

245122505305 is a wasteful number, since it uses less digits than its factorization.

245122505305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94256.

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 245122505305 its reverse (503505221542), we get a palindrome (748627726847).

The spelling of 245122505305 in words is "two hundred forty-five billion, one hundred twenty-two million, five hundred five thousand, three hundred five".