105012025 has 6 divisors (see below), whose sum is σ = 130214942. Its totient is φ = 84009600.

The previous prime is 105012001. The next prime is 105012041. The reversal of 105012025 is 520210501.

It can be written as a sum of positive squares in 3 ways, for example, as 23145721 + 81866304 = 4811^2 + 9048^2 .

It is not a de Polignac number, because 105012025 - 2¹⁹ = 104487737 is a prime.

It is a super-2 number, since 2×105012025² = 22055050789201250, which contains 22 as substring.

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 2100216 + ... + 2100265.

Almost surely, 2^105012025 is an apocalyptic number.

It is an amenable number.

105012025 is a deficient number, since it is larger than the sum of its proper divisors (25202917).

105012025 is an equidigital number, since it uses as much as digits as its factorization.

105012025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200491 (or 4200486 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 105012025 is about 10247.5375090799. The cubic root of 105012025 is about 471.7874069537.

Adding to 105012025 its reverse (520210501), we get a palindrome (625222526).

The spelling of 105012025 in words is "one hundred five million, twelve thousand, twenty-five".