605506243 has 2 divisors, whose sum is σ = 605506244. Its totient is φ = 605506242.

The previous prime is 605506219. The next prime is 605506277. The reversal of 605506243 is 342605506.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 605506243 - 2¹³ = 605498051 is a prime.

It is not a weakly prime, because it can be changed into another prime (605509243) 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, 302753121 + 302753122.

It is an arithmetic number, because the mean of its divisors is an integer number (302753122).

Almost surely, 2^605506243 is an apocalyptic number.

605506243 is a deficient number, since it is larger than the sum of its proper divisors (1).

605506243 is an equidigital number, since it uses as much as digits as its factorization.

605506243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 605506243 is about 24607.0364530148. The cubic root of 605506243 is about 846.0048934397.

The spelling of 605506243 in words is "six hundred five million, five hundred six thousand, two hundred forty-three".