105297839 has 2 divisors, whose sum is σ = 105297840. Its totient is φ = 105297838.

The previous prime is 105297817. The next prime is 105297851. The reversal of 105297839 is 938792501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105297839 - 2¹² = 105293743 is a prime.

It is a super-2 number, since 2×105297839² = 22175269796139842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105297839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105291839) 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, 52648919 + 52648920.

It is an arithmetic number, because the mean of its divisors is an integer number (52648920).

Almost surely, 2^105297839 is an apocalyptic number.

105297839 is a deficient number, since it is larger than the sum of its proper divisors (1).

105297839 is an equidigital number, since it uses as much as digits as its factorization.

105297839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 105297839 is about 10261.4735296642. The cubic root of 105297839 is about 472.2150446296.

The spelling of 105297839 in words is "one hundred five million, two hundred ninety-seven thousand, eight hundred thirty-nine".