1318225 has 12 divisors (see below), whose sum is σ = 1661104. Its totient is φ = 1037520.

The previous prime is 1318211. The next prime is 1318241. The reversal of 1318225 is 5228131.

It is not a de Polignac number, because 1318225 - 2⁵ = 1318193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1318196 and 1318205.

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, 1282 + ... + 2068.

2^1318225 is an apocalyptic number.

It is an amenable number.

1318225 is a deficient number, since it is larger than the sum of its proper divisors (342879).

1318225 is an equidigital number, since it uses as much as digits as its factorization.

1318225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 859 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1318225 is about 1148.1397998502. The cubic root of 1318225 is about 109.6469396412.

The spelling of 1318225 in words is "one million, three hundred eighteen thousand, two hundred twenty-five".