105908239 has 2 divisors, whose sum is σ = 105908240. Its totient is φ = 105908238.

The previous prime is 105908237. The next prime is 105908263. The reversal of 105908239 is 932809501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105908239 - 2¹ = 105908237 is a prime.

It is a super-2 number, since 2×105908239² = 22433110176162242, which contains 22 as substring.

Together with 105908237, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 105908198 and 105908207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105908237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52954119 + 52954120.

It is an arithmetic number, because the mean of its divisors is an integer number (52954120).

Almost surely, 2^105908239 is an apocalyptic number.

105908239 is a deficient number, since it is larger than the sum of its proper divisors (1).

105908239 is an equidigital number, since it uses as much as digits as its factorization.

105908239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 105908239 is about 10291.1728680457. The cubic root of 105908239 is about 473.1257467151.

The spelling of 105908239 in words is "one hundred five million, nine hundred eight thousand, two hundred thirty-nine".