105442241 has 2 divisors, whose sum is σ = 105442242. Its totient is φ = 105442240.

The previous prime is 105442219. The next prime is 105442247. The reversal of 105442241 is 142244501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92083216 + 13359025 = 9596^2 + 3655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105442241 is a prime.

It is a super-2 number, since 2×105442241² = 22236132374204162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105442247) 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, 52721120 + 52721121.

It is an arithmetic number, because the mean of its divisors is an integer number (52721121).

Almost surely, 2^105442241 is an apocalyptic number.

It is an amenable number.

105442241 is a deficient number, since it is larger than the sum of its proper divisors (1).

105442241 is an equidigital number, since it uses as much as digits as its factorization.

105442241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 105442241 is about 10268.5072430222. The cubic root of 105442241 is about 472.4308061008.

Adding to 105442241 its reverse (142244501), we get a palindrome (247686742).

The spelling of 105442241 in words is "one hundred five million, four hundred forty-two thousand, two hundred forty-one".