1224001 has 4 divisors (see below), whose sum is σ = 1238832. Its totient is φ = 1209172.

The previous prime is 1223993. The next prime is 1224029. The reversal of 1224001 is 1004221.

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 not a de Polignac number, because 1224001 - 2³ = 1223993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224031) 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, 7291 + ... + 7456.

It is an arithmetic number, because the mean of its divisors is an integer number (309708).

2^1224001 is an apocalyptic number.

It is an amenable number.

1224001 is a deficient number, since it is larger than the sum of its proper divisors (14831).

1224001 is an equidigital number, since it uses as much as digits as its factorization.

1224001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14830.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1224001 is about 1106.3457868135. The cubic root of 1224001 is about 106.9696539559.

Adding to 1224001 its reverse (1004221), we get a palindrome (2228222).

The spelling of 1224001 in words is "one million, two hundred twenty-four thousand, one".