100315025 has 6 divisors (see below), whose sum is σ = 124390662. Its totient is φ = 80252000.

The previous prime is 100315009. The next prime is 100315027. The reversal of 100315025 is 520513001.

It can be written as a sum of positive squares in 3 ways, for example, as 14622976 + 85692049 = 3824^2 + 9257^2 .

It is not a de Polignac number, because 100315025 - 2⁴ = 100315009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100314994 and 100315012.

It is not an unprimeable number, because it can be changed into a prime (100315027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2006276 + ... + 2006325.

It is an arithmetic number, because the mean of its divisors is an integer number (20731777).

Almost surely, 2^100315025 is an apocalyptic number.

It is an amenable number.

100315025 is a deficient number, since it is larger than the sum of its proper divisors (24075637).

100315025 is an equidigital number, since it uses as much as digits as its factorization.

100315025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012611 (or 4012606 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 100315025 is about 10015.7388644074. The cubic root of 100315025 is about 464.6457779462.

Adding to 100315025 its reverse (520513001), we get a palindrome (620828026).

The spelling of 100315025 in words is "one hundred million, three hundred fifteen thousand, twenty-five".