1217027225 has 6 divisors (see below), whose sum is σ = 1509113790. Its totient is φ = 973621760.

The previous prime is 1217027219. The next prime is 1217027239. The reversal of 1217027225 is 5227207121.

It can be written as a sum of positive squares in 3 ways, for example, as 22080601 + 1194946624 = 4699^2 + 34568^2 .

It is not a de Polignac number, because 1217027225 - 2⁴ = 1217027209 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24340520 + ... + 24340569.

It is an arithmetic number, because the mean of its divisors is an integer number (251518965).

Almost surely, 2^1217027225 is an apocalyptic number.

It is an amenable number.

1217027225 is a deficient number, since it is larger than the sum of its proper divisors (292086565).

1217027225 is an equidigital number, since it uses as much as digits as its factorization.

1217027225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48681099 (or 48681094 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 1217027225 is about 34885.9172876391. The cubic root of 1217027225 is about 1067.6611285025.

The spelling of 1217027225 in words is "one billion, two hundred seventeen million, twenty-seven thousand, two hundred twenty-five".