105259439 has 4 divisors (see below), whose sum is σ = 105490224. Its totient is φ = 105028656.

The previous prime is 105259433. The next prime is 105259457. The reversal of 105259439 is 934952501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105259439 - 2²⁰ = 104210863 is a prime.

It is a super-2 number, since 2×105259439² = 22159098997189442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105259433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114707 + ... + 115620.

It is an arithmetic number, because the mean of its divisors is an integer number (26372556).

Almost surely, 2^105259439 is an apocalyptic number.

105259439 is a deficient number, since it is larger than the sum of its proper divisors (230785).

105259439 is an equidigital number, since it uses as much as digits as its factorization.

105259439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230784.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 105259439 is about 10259.6022827398. The cubic root of 105259439 is about 472.1576352133.

The spelling of 105259439 in words is "one hundred five million, two hundred fifty-nine thousand, four hundred thirty-nine".