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105545001169 is a prime number
BaseRepresentation
bin110001001001011111…
…0001110100011010001
3101002102121112120212101
41202102332032203101
53212124010014134
6120253043400401
710424334464446
oct1422276164321
9332377476771
10105545001169
11408414465a3
1218556983101
139c5054b41a
14517366d9cd
152b2ae47e14
hex1892f8e8d1

105545001169 has 2 divisors, whose sum is σ = 105545001170. Its totient is φ = 105545001168.

The previous prime is 105545001103. The next prime is 105545001187. The reversal of 105545001169 is 961100545501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74535552144 + 31009449025 = 273012^2 + 176095^2 .

It is an emirp because it is prime and its reverse (961100545501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105545001169 - 219 = 105544476881 is a prime.

It is a super-2 number, since 2×1055450011692 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105545001269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52772500584 + 52772500585.

It is an arithmetic number, because the mean of its divisors is an integer number (52772500585).

Almost surely, 2105545001169 is an apocalyptic number.

It is an amenable number.

105545001169 is a deficient number, since it is larger than the sum of its proper divisors (1).

105545001169 is an equidigital number, since it uses as much as digits as its factorization.

105545001169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 105545001169 in words is "one hundred five billion, five hundred forty-five million, one thousand, one hundred sixty-nine".