201266729 has 2 divisors, whose sum is σ = 201266730. Its totient is φ = 201266728.

The previous prime is 201266719. The next prime is 201266731. The reversal of 201266729 is 927662102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108722329 + 92544400 = 10427^2 + 9620^2 .

It is a cyclic number.

It is not a de Polignac number, because 201266729 - 2⁴ = 201266713 is a prime.

Together with 201266731, 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 (201266719) 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, 100633364 + 100633365.

It is an arithmetic number, because the mean of its divisors is an integer number (100633365).

Almost surely, 2^201266729 is an apocalyptic number.

It is an amenable number.

201266729 is a deficient number, since it is larger than the sum of its proper divisors (1).

201266729 is an equidigital number, since it uses as much as digits as its factorization.

201266729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 201266729 is about 14186.8505666339. The cubic root of 201266729 is about 586.0355961945.

The spelling of 201266729 in words is "two hundred one million, two hundred sixty-six thousand, seven hundred twenty-nine".