11143225 has 12 divisors (see below), whose sum is σ = 13884156. Its totient is φ = 8871680.

The previous prime is 11143219. The next prime is 11143243. The reversal of 11143225 is 52234111.

It can be written as a sum of positive squares in 6 ways, for example, as 94249 + 11048976 = 307^2 + 3324^2 .

It is not a de Polignac number, because 11143225 - 2³ = 11143217 is a prime.

It is a Duffinian number.

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, 4869 + ... + 6781.

It is an arithmetic number, because the mean of its divisors is an integer number (1157013).

Almost surely, 2^11143225 is an apocalyptic number.

It is an amenable number.

11143225 is a deficient number, since it is larger than the sum of its proper divisors (2740931).

11143225 is a wasteful number, since it uses less digits than its factorization.

11143225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2151 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 11143225 is about 3338.1469410438. The cubic root of 11143225 is about 223.3590908635.

Adding to 11143225 its reverse (52234111), we get a palindrome (63377336).

The spelling of 11143225 in words is "eleven million, one hundred forty-three thousand, two hundred twenty-five".