105243571 has 2 divisors, whose sum is σ = 105243572. Its totient is φ = 105243570.

The previous prime is 105243569. The next prime is 105243601. The reversal of 105243571 is 175342501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105243571 - 2¹ = 105243569 is a prime.

It is a super-2 number, since 2×105243571² = 22152418473664082, which contains 22 as substring.

Together with 105243569, 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 (105246571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52621785 + 52621786.

It is an arithmetic number, because the mean of its divisors is an integer number (52621786).

Almost surely, 2^105243571 is an apocalyptic number.

105243571 is a deficient number, since it is larger than the sum of its proper divisors (1).

105243571 is an equidigital number, since it uses as much as digits as its factorization.

105243571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 105243571 is about 10258.8289292687. The cubic root of 105243571 is about 472.1339078911.

The spelling of 105243571 in words is "one hundred five million, two hundred forty-three thousand, five hundred seventy-one".