105817245 has 16 divisors (see below), whose sum is σ = 169549440. Its totient is φ = 56355264.

The previous prime is 105817241. The next prime is 105817277. The reversal of 105817245 is 542718501.

It is not a de Polignac number, because 105817245 - 2² = 105817241 is a prime.

It is a super-2 number, since 2×105817245² = 22394578678780050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105817241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6696 + ... + 16014.

It is an arithmetic number, because the mean of its divisors is an integer number (10596840).

Almost surely, 2^105817245 is an apocalyptic number.

105817245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105817245 is a deficient number, since it is larger than the sum of its proper divisors (63732195).

105817245 is an equidigital number, since it uses as much as digits as its factorization.

105817245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 105817245 is about 10286.7509447833. The cubic root of 105817245 is about 472.9902081893.

The spelling of 105817245 in words is "one hundred five million, eight hundred seventeen thousand, two hundred forty-five".