1247327225 has 6 divisors (see below), whose sum is σ = 1546685790. Its totient is φ = 997861760.

The previous prime is 1247327209. The next prime is 1247327227. The reversal of 1247327225 is 5227237421.

It can be written as a sum of positive squares in 3 ways, for example, as 15808576 + 1231518649 = 3976^2 + 35093^2 .

It is not a de Polignac number, because 1247327225 - 2⁴ = 1247327209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1247327227) 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, 24946520 + ... + 24946569.

It is an arithmetic number, because the mean of its divisors is an integer number (257780965).

Almost surely, 2^1247327225 is an apocalyptic number.

It is an amenable number.

1247327225 is a deficient number, since it is larger than the sum of its proper divisors (299358565).

1247327225 is an equidigital number, since it uses as much as digits as its factorization.

1247327225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49893099 (or 49893094 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 1247327225 is about 35317.5200856459. The cubic root of 1247327225 is about 1076.4490212499.

The spelling of 1247327225 in words is "one billion, two hundred forty-seven million, three hundred twenty-seven thousand, two hundred twenty-five".