105618241 has 4 divisors (see below), whose sum is σ = 107611092. Its totient is φ = 103625392.

The previous prime is 105618223. The next prime is 105618257. The reversal of 105618241 is 142816501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35058241 + 70560000 = 5921^2 + 8400^2 .

It is a cyclic number.

It is not a de Polignac number, because 105618241 - 2¹⁷ = 105487169 is a prime.

It is a super-2 number, since 2×105618241² = 22310425663868162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105613241) 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 in 3 ways as a sum of consecutive naturals, for example, 996346 + ... + 996451.

It is an arithmetic number, because the mean of its divisors is an integer number (26902773).

Almost surely, 2^105618241 is an apocalyptic number.

It is an amenable number.

105618241 is a deficient number, since it is larger than the sum of its proper divisors (1992851).

105618241 is an equidigital number, since it uses as much as digits as its factorization.

105618241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992850.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 105618241 is about 10277.0735620604. The cubic root of 105618241 is about 472.6935142324.

The spelling of 105618241 in words is "one hundred five million, six hundred eighteen thousand, two hundred forty-one".