Adding to 1333333 its reverse (3333331), we get a palindrome (4666664).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a 2-Lehmer number, since φ(1333333) divides (1333333-1)2.
It is a cyclic number.
It is a Duffinian number.
1333333 is a lucky number.
It is a plaindrome in base 10.
It is a self number, because there is not a number n which added to its sum of digits gives 1333333.
It is a congruent number.
It is a Poulet number, since it divides 21333332-1.
21333333 is an apocalyptic number.
1333333 is the 667-th octagonal number.
It is an amenable number.
1333333 is a wasteful number, since it uses less digits than its factorization.
1333333 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2051.
The square root of 1333333 is about 1154.7003940417. The cubic root of 1333333 is about 110.0642324578.
The spelling of 1333333 in words is "one million, three hundred thirty-three thousand, three hundred thirty-three".