133110209 has 2 divisors, whose sum is σ = 133110210. Its totient is φ = 133110208.

The previous prime is 133110199. The next prime is 133110227. The reversal of 133110209 is 902011331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100300225 + 32809984 = 10015^2 + 5728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133110209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133110259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66555104 + 66555105.

It is an arithmetic number, because the mean of its divisors is an integer number (66555105).

Almost surely, 2^133110209 is an apocalyptic number.

It is an amenable number.

133110209 is a deficient number, since it is larger than the sum of its proper divisors (1).

133110209 is an equidigital number, since it uses as much as digits as its factorization.

133110209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 133110209 is about 11537.3397713684. The cubic root of 133110209 is about 510.5878253528.

The spelling of 133110209 in words is "one hundred thirty-three million, one hundred ten thousand, two hundred nine".