1406225 has 6 divisors (see below), whose sum is σ = 1743750. Its totient is φ = 1124960.

The previous prime is 1406221. The next prime is 1406231. The reversal of 1406225 is 5226041.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 332929 + 1073296 = 577^2 + 1036^2 .

It is not a de Polignac number, because 1406225 - 2² = 1406221 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1406197 and 1406206.

It is not an unprimeable number, because it can be changed into a prime (1406221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28100 + ... + 28149.

It is an arithmetic number, because the mean of its divisors is an integer number (290625).

2^1406225 is an apocalyptic number.

It is an amenable number.

1406225 is a deficient number, since it is larger than the sum of its proper divisors (337525).

1406225 is an equidigital number, since it uses as much as digits as its factorization.

1406225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56259 (or 56254 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1406225 is about 1185.8435815908. The cubic root of 1406225 is about 112.0344547482.

The spelling of 1406225 in words is "one million, four hundred six thousand, two hundred twenty-five".