1230517 has 4 divisors (see below), whose sum is σ = 1233760. Its totient is φ = 1227276.

The previous prime is 1230491. The next prime is 1230521. The reversal of 1230517 is 7150321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7150321 = 163 ⋅43867.

It is a cyclic number.

It is not a de Polignac number, because 1230517 - 2¹⁹ = 706229 is a prime.

It is a Duffinian number.

1230517 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1230494 and 1230503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963 + ... + 1840.

It is an arithmetic number, because the mean of its divisors is an integer number (308440).

2^1230517 is an apocalyptic number.

It is an amenable number.

1230517 is a deficient number, since it is larger than the sum of its proper divisors (3243).

1230517 is an equidigital number, since it uses as much as digits as its factorization.

1230517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1230517 is about 1109.2867077541. The cubic root of 1230517 is about 107.1591366586.

Adding to 1230517 its reverse (7150321), we get a palindrome (8380838).

The spelling of 1230517 in words is "one million, two hundred thirty thousand, five hundred seventeen".