105055109 has 2 divisors, whose sum is σ = 105055110. Its totient is φ = 105055108.

The previous prime is 105055051. The next prime is 105055117. The reversal of 105055109 is 901550501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97574884 + 7480225 = 9878^2 + 2735^2 .

It is a cyclic number.

It is not a de Polignac number, because 105055109 - 2¹² = 105051013 is a prime.

It is a super-2 number, since 2×105055109² = 22073151854003762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5055109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52527554 + 52527555.

It is an arithmetic number, because the mean of its divisors is an integer number (52527555).

Almost surely, 2^105055109 is an apocalyptic number.

It is an amenable number.

105055109 is a deficient number, since it is larger than the sum of its proper divisors (1).

105055109 is an equidigital number, since it uses as much as digits as its factorization.

105055109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 105055109 is about 10249.6394570736. The cubic root of 105055109 is about 471.8519192781.

The spelling of 105055109 in words is "one hundred five million, fifty-five thousand, one hundred nine".