206614321 has 2 divisors, whose sum is σ = 206614322. Its totient is φ = 206614320.

The previous prime is 206614297. The next prime is 206614339. The reversal of 206614321 is 123416602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145540096 + 61074225 = 12064^2 + 7815^2 .

It is a cyclic number.

It is not a de Polignac number, because 206614321 - 2¹³ = 206606129 is a prime.

It is not a weakly prime, because it can be changed into another prime (206614391) 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, 103307160 + 103307161.

It is an arithmetic number, because the mean of its divisors is an integer number (103307161).

Almost surely, 2^206614321 is an apocalyptic number.

It is an amenable number.

206614321 is a deficient number, since it is larger than the sum of its proper divisors (1).

206614321 is an equidigital number, since it uses as much as digits as its factorization.

206614321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 206614321 is about 14374.0850491431. The cubic root of 206614321 is about 591.1805539521.

The spelling of 206614321 in words is "two hundred six million, six hundred fourteen thousand, three hundred twenty-one".