605505149 has 2 divisors, whose sum is σ = 605505150. Its totient is φ = 605505148.

The previous prime is 605505101. The next prime is 605505161. The reversal of 605505149 is 941505506.

605505149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 564775225 + 40729924 = 23765^2 + 6382^2 .

It is a cyclic number.

It is not a de Polignac number, because 605505149 - 2²⁴ = 588727933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605505049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302752574 + 302752575.

It is an arithmetic number, because the mean of its divisors is an integer number (302752575).

Almost surely, 2^605505149 is an apocalyptic number.

It is an amenable number.

605505149 is a deficient number, since it is larger than the sum of its proper divisors (1).

605505149 is an equidigital number, since it uses as much as digits as its factorization.

605505149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 605505149 is about 24607.0142235908. The cubic root of 605505149 is about 846.0043839322.

The spelling of 605505149 in words is "six hundred five million, five hundred five thousand, one hundred forty-nine".