105543071 has 2 divisors, whose sum is σ = 105543072. Its totient is φ = 105543070.

The previous prime is 105543041. The next prime is 105543073. The reversal of 105543071 is 170345501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105543071 - 2⁶ = 105543007 is a prime.

It is a super-2 number, since 2×105543071² = 22278679672222082, which contains 22 as substring.

Together with 105543073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 105543071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105543073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52771535 + 52771536.

It is an arithmetic number, because the mean of its divisors is an integer number (52771536).

Almost surely, 2^105543071 is an apocalyptic number.

105543071 is a deficient number, since it is larger than the sum of its proper divisors (1).

105543071 is an equidigital number, since it uses as much as digits as its factorization.

105543071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 105543071 is about 10273.4157416119. The cubic root of 105543071 is about 472.5813467252.

Adding to 105543071 its reverse (170345501), we get a palindrome (275888572).

It can be divided in two parts, 1055430 and 71, that added together give a palindrome (1055501).

The spelling of 105543071 in words is "one hundred five million, five hundred forty-three thousand, seventy-one".