210133169 has 2 divisors, whose sum is σ = 210133170. Its totient is φ = 210133168.

The previous prime is 210133163. The next prime is 210133171. The reversal of 210133169 is 961331012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120736144 + 89397025 = 10988^2 + 9455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210133169 is a prime.

It is a super-2 number, since 2×210133169² = 88311897427965122, which contains 22 as substring.

Together with 210133171, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_11608523 and since 210133169 and 11608523 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (210133163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105066584 + 105066585.

It is an arithmetic number, because the mean of its divisors is an integer number (105066585).

Almost surely, 2^210133169 is an apocalyptic number.

It is an amenable number.

210133169 is a deficient number, since it is larger than the sum of its proper divisors (1).

210133169 is an equidigital number, since it uses as much as digits as its factorization.

210133169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 210133169 is about 14495.9707850147. The cubic root of 210133169 is about 594.5178109723.

The spelling of 210133169 in words is "two hundred ten million, one hundred thirty-three thousand, one hundred sixty-nine".