1118225 has 6 divisors (see below), whose sum is σ = 1386630. Its totient is φ = 894560.

The previous prime is 1118219. The next prime is 1118261. The reversal of 1118225 is 5228111.

1118225 = T₁₈₆ + T₁₈₇ + ... + T₂₃₅.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 165649 + 952576 = 407^2 + 976^2 .

It is not a de Polignac number, because 1118225 - 2¹⁸ = 856081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1118197 and 1118206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22340 + ... + 22389.

It is an arithmetic number, because the mean of its divisors is an integer number (231105).

2^1118225 is an apocalyptic number.

It is an amenable number.

1118225 is a deficient number, since it is larger than the sum of its proper divisors (268405).

1118225 is an equidigital number, since it uses as much as digits as its factorization.

1118225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44739 (or 44734 counting only the distinct ones).

The product of its digits is 160, while the sum is 20.

The square root of 1118225 is about 1057.4615832265. The cubic root of 1118225 is about 103.7949918570.

The spelling of 1118225 in words is "one million, one hundred eighteen thousand, two hundred twenty-five".