609363121 has 2 divisors, whose sum is σ = 609363122. Its totient is φ = 609363120.

The previous prime is 609363119. The next prime is 609363143. The reversal of 609363121 is 121363906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556960000 + 52403121 = 23600^2 + 7239^2 .

It is a cyclic number.

It is not a de Polignac number, because 609363121 - 2¹ = 609363119 is a prime.

Together with 609363119, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (609313121) 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, 304681560 + 304681561.

It is an arithmetic number, because the mean of its divisors is an integer number (304681561).

Almost surely, 2^609363121 is an apocalyptic number.

It is an amenable number.

609363121 is a deficient number, since it is larger than the sum of its proper divisors (1).

609363121 is an equidigital number, since it uses as much as digits as its factorization.

609363121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 609363121 is about 24685.2814648729. The cubic root of 609363121 is about 847.7973517672.

The spelling of 609363121 in words is "six hundred nine million, three hundred sixty-three thousand, one hundred twenty-one".