245023531540313 has 6 divisors (see below), whose sum is σ = 258598242429354. Its totient is φ = 232127556195744.

The previous prime is 245023531540309. The next prime is 245023531540367. The reversal of 245023531540313 is 313045135320542.

It can be written as a sum of positive squares in only one way, i.e., 243369110485264 + 1654421055049 = 15600292^2 + 1286243^2 .

It is not a de Polignac number, because 245023531540313 - 2² = 245023531540309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245023531540303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339367771856 + ... + 339367772577.

It is an arithmetic number, because the mean of its divisors is an integer number (43099707071559).

Almost surely, 2^{245023531540313} is an apocalyptic number.

It is an amenable number.

245023531540313 is a deficient number, since it is larger than the sum of its proper divisors (13574710889041).

245023531540313 is an equidigital number, since it uses as much as digits as its factorization.

245023531540313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678735544471 (or 678735544452 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 245023531540313 its reverse (313045135320542), we get a palindrome (558068666860855).

The spelling of 245023531540313 in words is "two hundred forty-five trillion, twenty-three billion, five hundred thirty-one million, five hundred forty thousand, three hundred thirteen".