245344513134313 has 4 divisors (see below), whose sum is σ = 245344623431508. Its totient is φ = 245344402837120.

The previous prime is 245344513134293. The next prime is 245344513134353. The reversal of 245344513134313 is 313431315443542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56865881656809 + 188478631477504 = 7540947^2 + 13728752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245344513134313 is a prime.

It is a super-2 number, since 2×245344513134313² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245344513134353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51741856 + ... + 56284177.

It is an arithmetic number, because the mean of its divisors is an integer number (61336155857877).

Almost surely, 2^{245344513134313} is an apocalyptic number.

It is an amenable number.

245344513134313 is a deficient number, since it is larger than the sum of its proper divisors (110297195).

245344513134313 is a wasteful number, since it uses less digits than its factorization.

245344513134313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110297194.

The product of its digits is 3110400, while the sum is 46.

Adding to 245344513134313 its reverse (313431315443542), we get a palindrome (558775828577855).

The spelling of 245344513134313 in words is "two hundred forty-five trillion, three hundred forty-four billion, five hundred thirteen million, one hundred thirty-four thousand, three hundred thirteen".