105291856 has 20 divisors (see below), whose sum is σ = 207349204. Its totient is φ = 51782400.

The previous prime is 105291839. The next prime is 105291869. The reversal of 105291856 is 658192501.

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 92929600 = 3516^2 + 9640^2 .

It is a super-2 number, since 2×105291856² = 22172749879849472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52965 + ... + 54916.

Almost surely, 2^105291856 is an apocalyptic number.

105291856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

105291856 is a deficient number, since it is larger than the sum of its proper divisors (102057348).

105291856 is a wasteful number, since it uses less digits than its factorization.

105291856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107950 (or 107944 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 105291856 is about 10261.1819981910. The cubic root of 105291856 is about 472.2061007419.

The spelling of 105291856 in words is "one hundred five million, two hundred ninety-one thousand, eight hundred fifty-six".