105694289 has 2 divisors, whose sum is σ = 105694290. Its totient is φ = 105694288.

The previous prime is 105694261. The next prime is 105694297. The reversal of 105694289 is 982496501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80694289 + 25000000 = 8983^2 + 5000^2 .

It is a cyclic number.

It is not a de Polignac number, because 105694289 - 2¹⁶ = 105628753 is a prime.

It is a super-2 number, since 2×105694289² = 22342565454431042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105694229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52847144 + 52847145.

It is an arithmetic number, because the mean of its divisors is an integer number (52847145).

Almost surely, 2^105694289 is an apocalyptic number.

It is an amenable number.

105694289 is a deficient number, since it is larger than the sum of its proper divisors (1).

105694289 is an equidigital number, since it uses as much as digits as its factorization.

105694289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 105694289 is about 10280.7727822377. The cubic root of 105694289 is about 472.8069377338.

The spelling of 105694289 in words is "one hundred five million, six hundred ninety-four thousand, two hundred eighty-nine".