105520845 has 8 divisors (see below), whose sum is σ = 168833376. Its totient is φ = 56277776.

The previous prime is 105520841. The next prime is 105520867. The reversal of 105520845 is 548025501.

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

It is a cyclic number.

It is not a de Polignac number, because 105520845 - 2² = 105520841 is a prime.

It is a super-2 number, since 2×105520845² = 22269297459028050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105520841) 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, 3517347 + ... + 3517376.

It is an arithmetic number, because the mean of its divisors is an integer number (21104172).

Almost surely, 2^105520845 is an apocalyptic number.

105520845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105520845 is a deficient number, since it is larger than the sum of its proper divisors (63312531).

105520845 is an equidigital number, since it uses as much as digits as its factorization.

105520845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034731.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 105520845 is about 10272.3339606927. Note that the first 3 decimals coincide. The cubic root of 105520845 is about 472.5481712317.

The spelling of 105520845 in words is "one hundred five million, five hundred twenty thousand, eight hundred forty-five".