1425217 has 2 divisors, whose sum is σ = 1425218. Its totient is φ = 1425216.

The previous prime is 1425199. The next prime is 1425227. The reversal of 1425217 is 7125241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1252161 + 173056 = 1119^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425217 - 2¹⁵ = 1392449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1425227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712608 + 712609.

It is an arithmetic number, because the mean of its divisors is an integer number (712609).

2^1425217 is an apocalyptic number.

It is an amenable number.

1425217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425217 is an equidigital number, since it uses as much as digits as its factorization.

1425217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 22.

The square root of 1425217 is about 1193.8245264694. The cubic root of 1425217 is about 112.5365675365.

The spelling of 1425217 in words is "one million, four hundred twenty-five thousand, two hundred seventeen".