605440313 has 2 divisors, whose sum is σ = 605440314. Its totient is φ = 605440312.

The previous prime is 605440307. The next prime is 605440321. The reversal of 605440313 is 313044506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561310864 + 44129449 = 23692^2 + 6643^2 .

It is a cyclic number.

It is not a de Polignac number, because 605440313 - 2⁶ = 605440249 is a prime.

It is not a weakly prime, because it can be changed into another prime (605440373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302720156 + 302720157.

It is an arithmetic number, because the mean of its divisors is an integer number (302720157).

Almost surely, 2^605440313 is an apocalyptic number.

It is an amenable number.

605440313 is a deficient number, since it is larger than the sum of its proper divisors (1).

605440313 is an equidigital number, since it uses as much as digits as its factorization.

605440313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 605440313 is about 24605.6967590841. The cubic root of 605440313 is about 845.9741868324.

Adding to 605440313 its reverse (313044506), we get a palindrome (918484819).

The spelling of 605440313 in words is "six hundred five million, four hundred forty thousand, three hundred thirteen".