100240225 has 12 divisors (see below), whose sum is σ = 126644796. Its totient is φ = 78678080.

The previous prime is 100240201. The next prime is 100240271. The reversal of 100240225 is 522042001.

It can be written as a sum of positive squares in 6 ways, for example, as 81 + 100240144 = 9^2 + 10012^2 .

It is not a de Polignac number, because 100240225 - 2¹⁹ = 99715937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100240199 and 100240208.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36502 + ... + 39151.

It is an arithmetic number, because the mean of its divisors is an integer number (10553733).

Almost surely, 2^100240225 is an apocalyptic number.

It is an amenable number.

100240225 is a deficient number, since it is larger than the sum of its proper divisors (26404571).

100240225 is an equidigital number, since it uses as much as digits as its factorization.

100240225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75716 (or 75711 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 100240225 is about 10012.0040451450. The cubic root of 100240225 is about 464.5302613648.

Adding to 100240225 its reverse (522042001), we get a palindrome (622282226).

The spelling of 100240225 in words is "one hundred million, two hundred forty thousand, two hundred twenty-five".