105343081 has 2 divisors, whose sum is σ = 105343082. Its totient is φ = 105343080.

The previous prime is 105343079. The next prime is 105343129. The reversal of 105343081 is 180343501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79941481 + 25401600 = 8941^2 + 5040^2 .

It is a cyclic number.

It is not a de Polignac number, because 105343081 - 2¹ = 105343079 is a prime.

It is a super-2 number, since 2×105343081² = 22194329429145122, which contains 22 as substring.

Together with 105343079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (105343061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52671540 + 52671541.

It is an arithmetic number, because the mean of its divisors is an integer number (52671541).

Almost surely, 2^105343081 is an apocalyptic number.

It is an amenable number.

105343081 is a deficient number, since it is larger than the sum of its proper divisors (1).

105343081 is an equidigital number, since it uses as much as digits as its factorization.

105343081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 105343081 is about 10263.6777521510. The cubic root of 105343081 is about 472.2826651818.

Adding to 105343081 its reverse (180343501), we get a palindrome (285686582).

The spelling of 105343081 in words is "one hundred five million, three hundred forty-three thousand, eighty-one".