209068253 has 2 divisors, whose sum is σ = 209068254. Its totient is φ = 209068252.

The previous prime is 209068217. The next prime is 209068259. The reversal of 209068253 is 352860902.

209068253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195244729 + 13823524 = 13973^2 + 3718^2 .

It is a cyclic number.

It is not a de Polignac number, because 209068253 - 2²⁴ = 192291037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209068259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104534126 + 104534127.

It is an arithmetic number, because the mean of its divisors is an integer number (104534127).

Almost surely, 2^209068253 is an apocalyptic number.

It is an amenable number.

209068253 is a deficient number, since it is larger than the sum of its proper divisors (1).

209068253 is an equidigital number, since it uses as much as digits as its factorization.

209068253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 209068253 is about 14459.1926814743. The cubic root of 209068253 is about 593.5118075716.

The spelling of 209068253 in words is "two hundred nine million, sixty-eight thousand, two hundred fifty-three".