201310169 has 2 divisors, whose sum is σ = 201310170. Its totient is φ = 201310168.

The previous prime is 201310159. The next prime is 201310171. The reversal of 201310169 is 961013102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197262025 + 4048144 = 14045^2 + 2012^2 .

It is a cyclic number.

It is not a de Polignac number, because 201310169 - 2¹⁶ = 201244633 is a prime.

It is a super-2 number, since 2×201310169² = 81051568285617122, which contains 22 as substring.

Together with 201310171, 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 (201310139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100655084 + 100655085.

It is an arithmetic number, because the mean of its divisors is an integer number (100655085).

Almost surely, 2^201310169 is an apocalyptic number.

It is an amenable number.

201310169 is a deficient number, since it is larger than the sum of its proper divisors (1).

201310169 is an equidigital number, since it uses as much as digits as its factorization.

201310169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 201310169 is about 14188.3814792245. The cubic root of 201310169 is about 586.0777551000.

The spelling of 201310169 in words is "two hundred one million, three hundred ten thousand, one hundred sixty-nine".