1224017 has 8 divisors (see below), whose sum is σ = 1312200. Its totient is φ = 1137664.

The previous prime is 1223993. The next prime is 1224029. The reversal of 1224017 is 7104221.

It can be written as a sum of positive squares in 4 ways, for example, as 379456 + 844561 = 616^2 + 919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1224017 - 2⁶ = 1223953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223986 and 1224004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109 + ... + 1917.

It is an arithmetic number, because the mean of its divisors is an integer number (164025).

2^1224017 is an apocalyptic number.

1224017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1224017 is a deficient number, since it is larger than the sum of its proper divisors (88183).

1224017 is an equidigital number, since it uses as much as digits as its factorization.

1224017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1224017 is about 1106.3530178022. The cubic root of 1224017 is about 106.9701200522.

Adding to 1224017 its reverse (7104221), we get a palindrome (8328238).

The spelling of 1224017 in words is "one million, two hundred twenty-four thousand, seventeen".