1230217 has 4 divisors (see below), whose sum is σ = 1247616. Its totient is φ = 1212820.

The previous prime is 1230199. The next prime is 1230223. The reversal of 1230217 is 7120321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230217.

It is not an unprimeable number, because it can be changed into a prime (1230227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8593 + ... + 8734.

It is an arithmetic number, because the mean of its divisors is an integer number (311904).

2^1230217 is an apocalyptic number.

It is an amenable number.

1230217 is a deficient number, since it is larger than the sum of its proper divisors (17399).

1230217 is an equidigital number, since it uses as much as digits as its factorization.

1230217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17398.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1230217 is about 1109.1514774818. The cubic root of 1230217 is about 107.1504274863.

Adding to 1230217 its reverse (7120321), we get a palindrome (8350538).

The spelling of 1230217 in words is "one million, two hundred thirty thousand, two hundred seventeen".