605651149 has 2 divisors, whose sum is σ = 605651150. Its totient is φ = 605651148.

The previous prime is 605651147. The next prime is 605651183. The reversal of 605651149 is 941156506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422590249 + 183060900 = 20557^2 + 13530^2 .

It is a cyclic number.

It is not a de Polignac number, because 605651149 - 2¹ = 605651147 is a prime.

Together with 605651147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605651147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302825574 + 302825575.

It is an arithmetic number, because the mean of its divisors is an integer number (302825575).

Almost surely, 2^605651149 is an apocalyptic number.

It is an amenable number.

605651149 is a deficient number, since it is larger than the sum of its proper divisors (1).

605651149 is an equidigital number, since it uses as much as digits as its factorization.

605651149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 605651149 is about 24609.9806785784. The cubic root of 605651149 is about 846.0723749389.

The spelling of 605651149 in words is "six hundred five million, six hundred fifty-one thousand, one hundred forty-nine".