613398229 has 2 divisors, whose sum is σ = 613398230. Its totient is φ = 613398228.

The previous prime is 613398187. The next prime is 613398251. The reversal of 613398229 is 922893316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352575729 + 260822500 = 18777^2 + 16150^2 .

It is a cyclic number.

It is not a de Polignac number, because 613398229 - 2⁷ = 613398101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613398329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306699114 + 306699115.

It is an arithmetic number, because the mean of its divisors is an integer number (306699115).

Almost surely, 2^613398229 is an apocalyptic number.

It is an amenable number.

613398229 is a deficient number, since it is larger than the sum of its proper divisors (1).

613398229 is an equidigital number, since it uses as much as digits as its factorization.

613398229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 613398229 is about 24766.8776594871. The cubic root of 613398229 is about 849.6645638378.

The spelling of 613398229 in words is "six hundred thirteen million, three hundred ninety-eight thousand, two hundred twenty-nine".