1066225 has 6 divisors (see below), whose sum is σ = 1322150. Its totient is φ = 852960.

The previous prime is 1066217. The next prime is 1066231. The reversal of 1066225 is 5226601.

It can be written as a sum of positive squares in 3 ways, for example, as 97969 + 968256 = 313^2 + 984^2 .

It is not a de Polignac number, because 1066225 - 2³ = 1066217 is a prime.

It is a super-2 number, since 2×1066225² = 2273671501250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066196 and 1066205.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21300 + ... + 21349.

2^1066225 is an apocalyptic number.

It is an amenable number.

1066225 is a deficient number, since it is larger than the sum of its proper divisors (255925).

1066225 is an equidigital number, since it uses as much as digits as its factorization.

1066225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42659 (or 42654 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1066225 is about 1032.5817158947. The cubic root of 1066225 is about 102.1604868168.

The spelling of 1066225 in words is "one million, sixty-six thousand, two hundred twenty-five".