105287269 has 2 divisors, whose sum is σ = 105287270. Its totient is φ = 105287268.

The previous prime is 105287257. The next prime is 105287279. The reversal of 105287269 is 962782501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101909025 + 3378244 = 10095^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 105287269 - 2⁷ = 105287141 is a prime.

It is a super-2 number, since 2×105287269² = 22170818026956722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105287219) 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 as a sum of consecutive naturals, namely, 52643634 + 52643635.

It is an arithmetic number, because the mean of its divisors is an integer number (52643635).

Almost surely, 2^105287269 is an apocalyptic number.

It is an amenable number.

105287269 is a deficient number, since it is larger than the sum of its proper divisors (1).

105287269 is an equidigital number, since it uses as much as digits as its factorization.

105287269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 105287269 is about 10260.9584834946. The cubic root of 105287269 is about 472.1992434821.

The spelling of 105287269 in words is "one hundred five million, two hundred eighty-seven thousand, two hundred sixty-nine".