105106939 has 4 divisors (see below), whose sum is σ = 120122224. Its totient is φ = 90091656.

The previous prime is 105106931. The next prime is 105106951. The reversal of 105106939 is 939601501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939601501 = 67 ⋅14023903.

It is a cyclic number.

It is not a de Polignac number, because 105106939 - 2³ = 105106931 is a prime.

It is a super-3 number, since 3×105106939³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105106931) 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 in 3 ways as a sum of consecutive naturals, for example, 7507632 + ... + 7507645.

It is an arithmetic number, because the mean of its divisors is an integer number (30030556).

Almost surely, 2^105106939 is an apocalyptic number.

105106939 is a deficient number, since it is larger than the sum of its proper divisors (15015285).

105106939 is an equidigital number, since it uses as much as digits as its factorization.

105106939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015284.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 105106939 is about 10252.1675269184. The cubic root of 105106939 is about 471.9295041584.

The spelling of 105106939 in words is "one hundred five million, one hundred six thousand, nine hundred thirty-nine".