105143161 has 2 divisors, whose sum is σ = 105143162. Its totient is φ = 105143160.

The previous prime is 105143153. The next prime is 105143177. The reversal of 105143161 is 161341501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101123136 + 4020025 = 10056^2 + 2005^2 .

It is an emirp because it is prime and its reverse (161341501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105143161 - 2³ = 105143153 is a prime.

It is a super-2 number, since 2×105143161² = 22110168610143842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105143111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52571580 + 52571581.

It is an arithmetic number, because the mean of its divisors is an integer number (52571581).

Almost surely, 2^105143161 is an apocalyptic number.

It is an amenable number.

105143161 is a deficient number, since it is larger than the sum of its proper divisors (1).

105143161 is an equidigital number, since it uses as much as digits as its factorization.

105143161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 105143161 is about 10253.9339280103. The cubic root of 105143161 is about 471.9837101172.

Adding to 105143161 its reverse (161341501), we get a palindrome (266484662).

The spelling of 105143161 in words is "one hundred five million, one hundred forty-three thousand, one hundred sixty-one".