100130225 has 12 divisors (see below), whose sum is σ = 133712796. Its totient is φ = 73942080.

The previous prime is 100130213. The next prime is 100130249. The reversal of 100130225 is 522031001.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9728161 + 90402064 = 3119^2 + 9508^2 .

It is not a de Polignac number, because 100130225 - 2⁶ = 100130161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153722 + ... + 154371.

It is an arithmetic number, because the mean of its divisors is an integer number (11142733).

Almost surely, 2^100130225 is an apocalyptic number.

It is an amenable number.

100130225 is a deficient number, since it is larger than the sum of its proper divisors (33582571).

100130225 is a wasteful number, since it uses less digits than its factorization.

100130225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308116 (or 308111 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 100130225 is about 10006.5091315603. The cubic root of 100130225 is about 464.3602795991.

Adding to 100130225 its reverse (522031001), we get a palindrome (622161226).

The spelling of 100130225 in words is "one hundred million, one hundred thirty thousand, two hundred twenty-five".