609349249 has 2 divisors, whose sum is σ = 609349250. Its totient is φ = 609349248.

The previous prime is 609349211. The next prime is 609349267. The reversal of 609349249 is 942943906.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 460875024 + 148474225 = 21468^2 + 12185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609349249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 609349199 and 609349208.

It is not a weakly prime, because it can be changed into another prime (609349549) 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, 304674624 + 304674625.

It is an arithmetic number, because the mean of its divisors is an integer number (304674625).

Almost surely, 2^609349249 is an apocalyptic number.

It is an amenable number.

609349249 is a deficient number, since it is larger than the sum of its proper divisors (1).

609349249 is an equidigital number, since it uses as much as digits as its factorization.

609349249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 609349249 is about 24685.0004861252. Note that the first 3 decimals coincide. The cubic root of 609349249 is about 847.7909184197.

The spelling of 609349249 in words is "six hundred nine million, three hundred forty-nine thousand, two hundred forty-nine".