313244045545 has 12 divisors (see below), whose sum is σ = 386326704204. Its totient is φ = 243822386880.

The previous prime is 313244045539. The next prime is 313244045557. The reversal of 313244045545 is 545540442313.

It can be written as a sum of positive squares in 6 ways, for example, as 57963451536 + 255280594009 = 240756^2 + 505253^2 .

It is not a de Polignac number, because 313244045545 - 2⁹ = 313244045033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313244045498 and 313244045507.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22874386 + ... + 22888075.

It is an arithmetic number, because the mean of its divisors is an integer number (32193892017).

Almost surely, 2^313244045545 is an apocalyptic number.

It is an amenable number.

313244045545 is a deficient number, since it is larger than the sum of its proper divisors (73082658659).

313244045545 is an equidigital number, since it uses as much as digits as its factorization.

313244045545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45762540 (or 45762503 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 313244045545 its reverse (545540442313), we get a palindrome (858784487858).

The spelling of 313244045545 in words is "three hundred thirteen billion, two hundred forty-four million, forty-five thousand, five hundred forty-five".