605512013 has 2 divisors, whose sum is σ = 605512014. Its totient is φ = 605512012.

The previous prime is 605512009. The next prime is 605512021. The reversal of 605512013 is 310215506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503643364 + 101868649 = 22442^2 + 10093^2 .

It is a cyclic number.

It is not a de Polignac number, because 605512013 - 2² = 605512009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 605512013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605512073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302756006 + 302756007.

It is an arithmetic number, because the mean of its divisors is an integer number (302756007).

Almost surely, 2^605512013 is an apocalyptic number.

It is an amenable number.

605512013 is a deficient number, since it is larger than the sum of its proper divisors (1).

605512013 is an equidigital number, since it uses as much as digits as its factorization.

605512013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 605512013 is about 24607.1536956227. The cubic root of 605512013 is about 846.0075806857.

Adding to 605512013 its reverse (310215506), we get a palindrome (915727519).

The spelling of 605512013 in words is "six hundred five million, five hundred twelve thousand, thirteen".