105545191 has 2 divisors, whose sum is σ = 105545192. Its totient is φ = 105545190.

The previous prime is 105545179. The next prime is 105545203. The reversal of 105545191 is 191545501.

It is a balanced prime because it is at equal distance from previous prime (105545179) and next prime (105545203).

It is a cyclic number.

It is not a de Polignac number, because 105545191 - 2⁹ = 105544679 is a prime.

It is a super-2 number, since 2×105545191² = 22279574686452962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105545131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52772595 + 52772596.

It is an arithmetic number, because the mean of its divisors is an integer number (52772596).

Almost surely, 2^105545191 is an apocalyptic number.

105545191 is a deficient number, since it is larger than the sum of its proper divisors (1).

105545191 is an equidigital number, since it uses as much as digits as its factorization.

105545191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 105545191 is about 10273.5189200196. The cubic root of 105545191 is about 472.5845108860.

The spelling of 105545191 in words is "one hundred five million, five hundred forty-five thousand, one hundred ninety-one".