105243361 has 4 divisors (see below), whose sum is σ = 106968724. Its totient is φ = 103518000.

The previous prime is 105243353. The next prime is 105243389. The reversal of 105243361 is 163342501.

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 24800400 + 80442961 = 4980^2 + 8969^2 .

It is a cyclic number.

It is not a de Polignac number, because 105243361 - 2³ = 105243353 is a prime.

It is a super-2 number, since 2×105243361² = 22152330069152642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105243961) 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, 862590 + ... + 862711.

It is an arithmetic number, because the mean of its divisors is an integer number (26742181).

Almost surely, 2^105243361 is an apocalyptic number.

It is an amenable number.

105243361 is a deficient number, since it is larger than the sum of its proper divisors (1725363).

105243361 is an equidigital number, since it uses as much as digits as its factorization.

105243361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725362.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 105243361 is about 10258.8186941772. The cubic root of 105243361 is about 472.1335938634.

Adding to 105243361 its reverse (163342501), we get a palindrome (268585862).

The spelling of 105243361 in words is "one hundred five million, two hundred forty-three thousand, three hundred sixty-one".