605312819 has 2 divisors, whose sum is σ = 605312820. Its totient is φ = 605312818.

The previous prime is 605312809. The next prime is 605312837. The reversal of 605312819 is 918213506.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 605312819 - 2²⁴ = 588535603 is a prime.

It is a super-2 number, since 2×605312819² = 732807217691453522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (605312809) 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, 302656409 + 302656410.

It is an arithmetic number, because the mean of its divisors is an integer number (302656410).

Almost surely, 2^605312819 is an apocalyptic number.

605312819 is a deficient number, since it is larger than the sum of its proper divisors (1).

605312819 is an equidigital number, since it uses as much as digits as its factorization.

605312819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 605312819 is about 24603.1058811687. The cubic root of 605312819 is about 845.9148007392.

The spelling of 605312819 in words is "six hundred five million, three hundred twelve thousand, eight hundred nineteen".