105231686 has 16 divisors (see below), whose sum is σ = 181151520. Its totient is φ = 44910720.

The previous prime is 105231677. The next prime is 105231703. The reversal of 105231686 is 686132501.

It is a happy number.

105231686 is nontrivially palindromic in base 16.

It is a super-2 number, since 2×105231686² = 22147415476805192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12221 + ... + 18968.

It is an arithmetic number, because the mean of its divisors is an integer number (11321970).

Almost surely, 2^105231686 is an apocalyptic number.

105231686 is a deficient number, since it is larger than the sum of its proper divisors (75919834).

105231686 is a wasteful number, since it uses less digits than its factorization.

105231686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31439.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 105231686 is about 10258.2496557649. The cubic root of 105231686 is about 472.1161347620.

The spelling of 105231686 in words is "one hundred five million, two hundred thirty-one thousand, six hundred eighty-six".