100000625 has 10 divisors (see below), whose sum is σ = 124961562. Its totient is φ = 80000000.

The previous prime is 100000609. The next prime is 100000627. The reversal of 100000625 is 526000001.

100000625 = 45² + 46² + ... + 669².

It can be written as a sum of positive squares in 5 ways, for example, as 7974976 + 92025649 = 2824^2 + 9593^2 .

It is not a de Polignac number, because 100000625 - 2⁴ = 100000609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100000627) 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 9 ways as a sum of consecutive naturals, for example, 79376 + ... + 80625.

Almost surely, 2^100000625 is an apocalyptic number.

It is an amenable number.

100000625 is a deficient number, since it is larger than the sum of its proper divisors (24960937).

100000625 is an frugal number, since it uses more digits than its factorization.

100000625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160021 (or 160006 counting only the distinct ones).

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

The square root of 100000625 is about 10000.0312499512. The cubic root of 100000625 is about 464.1598503569.

Adding to 100000625 its reverse (526000001), we get a palindrome (626000626).

The spelling of 100000625 in words is "one hundred million, six hundred twenty-five", and thus it is an aban number.