105705939 has 8 divisors (see below), whose sum is σ = 145487872. Its totient is φ = 68197320.

The previous prime is 105705937. The next prime is 105705947. The reversal of 105705939 is 939507501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105705939 - 2¹ = 105705937 is a prime.

It is a super-2 number, since 2×105705939² = 22347491079743442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105705897 and 105705906.

It is not an unprimeable number, because it can be changed into a prime (105705931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568219 + ... + 568404.

It is an arithmetic number, because the mean of its divisors is an integer number (18185984).

Almost surely, 2^105705939 is an apocalyptic number.

105705939 is a deficient number, since it is larger than the sum of its proper divisors (39781933).

105705939 is a wasteful number, since it uses less digits than its factorization.

105705939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136657.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 105705939 is about 10281.3393582743. The cubic root of 105705939 is about 472.8243085824.

The spelling of 105705939 in words is "one hundred five million, seven hundred five thousand, nine hundred thirty-nine".