11270225 has 6 divisors (see below), whose sum is σ = 13975110. Its totient is φ = 9016160.

The previous prime is 11270209. The next prime is 11270227. The reversal of 11270225 is 52207211.

It can be written as a sum of positive squares in 3 ways, for example, as 1227664 + 10042561 = 1108^2 + 3169^2 .

It is not a de Polignac number, because 11270225 - 2⁴ = 11270209 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11270197 and 11270206.

It is not an unprimeable number, because it can be changed into a prime (11270227) by changing a digit.

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, 225380 + ... + 225429.

It is an arithmetic number, because the mean of its divisors is an integer number (2329185).

Almost surely, 2^11270225 is an apocalyptic number.

It is an amenable number.

11270225 is a deficient number, since it is larger than the sum of its proper divisors (2704885).

11270225 is an equidigital number, since it uses as much as digits as its factorization.

11270225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450819 (or 450814 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 11270225 is about 3357.1155773968. The cubic root of 11270225 is about 224.2044331063.

Adding to 11270225 its reverse (52207211), we get a palindrome (63477436).

The spelling of 11270225 in words is "eleven million, two hundred seventy thousand, two hundred twenty-five".