1017730225 has 6 divisors (see below), whose sum is σ = 1261985510. Its totient is φ = 814184160.

The previous prime is 1017730187. The next prime is 1017730229. The reversal of 1017730225 is 5220377101.

1017730225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 54745201 + 962985024 = 7399^2 + 31032^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1017730225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1017730193 and 1017730202.

It is not an unprimeable number, because it can be changed into a prime (1017730229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20354580 + ... + 20354629.

Almost surely, 2^1017730225 is an apocalyptic number.

It is an amenable number.

1017730225 is a deficient number, since it is larger than the sum of its proper divisors (244255285).

1017730225 is an equidigital number, since it uses as much as digits as its factorization.

1017730225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40709219 (or 40709214 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 1017730225 is about 31901.8843487340. The cubic root of 1017730225 is about 1005.8754860538.

The spelling of 1017730225 in words is "one billion, seventeen million, seven hundred thirty thousand, two hundred twenty-five".