105340181 has 2 divisors, whose sum is σ = 105340182. Its totient is φ = 105340180.

The previous prime is 105340159. The next prime is 105340223. The reversal of 105340181 is 181043501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78039556 + 27300625 = 8834^2 + 5225^2 .

It is a cyclic number.

It is not a de Polignac number, because 105340181 - 2⁶ = 105340117 is a prime.

It is a super-2 number, since 2×105340181² = 22193107466225522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105340141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52670090 + 52670091.

It is an arithmetic number, because the mean of its divisors is an integer number (52670091).

Almost surely, 2^105340181 is an apocalyptic number.

It is an amenable number.

105340181 is a deficient number, since it is larger than the sum of its proper divisors (1).

105340181 is an equidigital number, since it uses as much as digits as its factorization.

105340181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 105340181 is about 10263.5364762834. The cubic root of 105340181 is about 472.2783313034.

Adding to 105340181 its reverse (181043501), we get a palindrome (286383682).

The spelling of 105340181 in words is "one hundred five million, three hundred forty thousand, one hundred eighty-one".