105299825 has 6 divisors (see below), whose sum is σ = 130571814. Its totient is φ = 84239840.

The previous prime is 105299801. The next prime is 105299851. The reversal of 105299825 is 528992501.

It can be written as a sum of positive squares in 3 ways, for example, as 31494544 + 73805281 = 5612^2 + 8591^2 .

It is not a de Polignac number, because 105299825 - 2⁸ = 105299569 is a prime.

It is a super-2 number, since 2×105299825² = 22176106290061250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2105972 + ... + 2106021.

It is an arithmetic number, because the mean of its divisors is an integer number (21761969).

Almost surely, 2^105299825 is an apocalyptic number.

It is an amenable number.

105299825 is a deficient number, since it is larger than the sum of its proper divisors (25271989).

105299825 is an equidigital number, since it uses as much as digits as its factorization.

105299825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212003 (or 4211998 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 105299825 is about 10261.5702989357. The cubic root of 105299825 is about 472.2180133932.

The spelling of 105299825 in words is "one hundred five million, two hundred ninety-nine thousand, eight hundred twenty-five".